Wednesday, August 1, 2007

Answer to brain teaser #18, brain teaser #19

Answer to brain teaser #18
1. head
2. toe
3. arm
4. hand
5. nose
6. knee
7. mouth
8. finger

brain teaser #19
Felipe's school is hosting a math competition against other schools in the same district. Each school can only allow 10 students to compete. Felipe and his classmates are taking tests to determine the 10 best math students to send. Felipe did well, but tied with John Roy for the last spot. His teacher decided to set-up a one-problem challenge, whoever got it right the fastest would win.

Knowing that "H" is equal to 10, and T is half of M, how could MATH be 42, TEAM be 40, and MEET be 37?

Wednesday, July 18, 2007

Answer to brain teaser #17, brain teaser#18

Answer to brain teaser #17
The answer is (A). Since it must happen, the probability is actually 1 (100%).
Explanation: Firstly, consider 2 men, one starting from the top of the mountain and hiking down while the other starts at the bottom and hikes up. At some time in the day, they will cross over. In other words they will be at the same place at the same time of day.
Now consider our man who has walked up on one day and begins the descent the next day. Imagine there is someone (a second person) shadowing his exact movements from the day before. When he meets his shadower (it must happen) it will be the exact place that he was the day before, and of course they are both at this spot at the same time.
Contrary to our common sense, which seems to say that this is an extremely unlikely event, it is a certainty.
NOTE: There is one unlikely event here, and that is that he will notice the time when he is at the correct location on both days, but that was not what the question asked.

Brain teaser#18
A part of the body is hidden in each of the following sentences. The first sentence contains "head." Can you find the rest?

1. The ad is for Monday's sale.
2. The tour group can go to either country.
3. My car makes funny noises sometimes.
4. Sarah and Tony are getting married.
5. That casino seems shady.
6. Can't you see that Hank needs help?
7. The sea is so calm out here.
8. Would you like to go surfing, Erin?

Wednesday, July 4, 2007

Answer to brain teaser #16, brain teaser #17

Answer to brain teaser #16

The judge then said, "Merchant, you stated that the purse you lost contained 200 pieces of gold. Well, that's a considerable loss, but the purse this beggar found had only 100 pieces of gold. Therefore, it couldn't be the one you lost." With that, the judge gave the purse with 100 pieces of gold to the beggar, and told the merchant that he did not have to pay a reward.

There might just be a leather bag out there somewhere still with 200 pieces of gold in it, but don't ask the merchant, the beggar, or me.

Brain teaser #17

A hiker climbs all day up a steep mountain path and arrives at the mountain top where he camps overnight. The next day he begins the descent down the same trail to the bottom of the mountain when suddenly he looks at his watch and exclaims, "That is amazing! I was at this very same spot at exactly the same time of day yesterday on my way up."
What is the probability that a hiker will be at exactly the same spot on the mountain at the same time of day on his return trip, as he was on the previous day's hike up the mountain?
Is the probability closest to (A) 99% or (B) 50% or (C) 0.1% ?

Wednesday, June 20, 2007

answer to brain teaser #15, brain teaser #16

Answer to brain teaser #15
Dale sold the house on Main Street for $50,000 in July.
Katie sold the house on Oak Street for $125,000 in August.
Pete sold the house on Fourth Street for $95,000 in September.
Roy sold the house on First Street for $75,000 in November.
Ron sold the house on Water Street for $115,000 in December.

Brain teaser #16
A beggar found a leather purse that someone had dropped in the marketplace. Opening it, he discovered that it contained 100 pieces of gold. Then he heard a merchant shout, "A reward! A reward to the one who finds my leather purse!"

Being an honest man, the beggar came forward and handed the purse to the merchant saying, "Here is your purse. May I have the reward now?"

"Reward?" scoffed the merchant, greedily counting his gold. "Why the purse I dropped had 200 pieces of gold in it. You've already stolen more than the reward! Go away or I'll tell the police."

"I'm an honest man," said the beggar defiantly. "Let us take this matter to the court."

In court, the judge patiently listened to both sides of the story of a leather bag lost and a leather bag found. He counted the coins; 100 gold coins in total. Then said, "If all was said is true then it's clear that no reward is necessary."

How did the judge rule on this case?

Wednesday, June 6, 2007

Answer to brain teaser #14, brain teaser #15

Answer to brain teaser #14
Lightning & Thunder


Brain teaser #15

This week’s brain teaser is a logic grid. Your grid should look like this:



















Here’s the teaser
Anytown USA Real Estate company recently reviewed their salespersons' most recent deals. While reviewing the documents, several papers were accidentally dropped into the paper shredder. Determine which salesperson sold which house for how much and when it sold. This is what the manager can remember:

1. Roy's sale closed before Ron's and after Dale's.

2. Pete's sale was neither the most nor least expensive and closed before Roy's.

3. Dale's sale on Main Street closed before Katie's sale on Oak Street.

4. The house on Water Street closed in December for $20,000 more than Pete's sale.

5. The house on First Street closed the day after Election Day for $20,000 less than Pete's sale.

6. Dale's & Katie's sales were the most and least expensive sales, in some order.

7. The houses on numbered streets were not the least expensive, and closed in September and November, in some order.

8. Pete's sale on Fourth Street closed after Katie's house sold for $125,000.

Answer to brain teaser #15
Dale sold the house on Main Street for $50,000 in July.
Katie sold the house on Oak Street for $125,000 in August.
Pete sold the house on Fourth Street for $95,000 in September.
Roy sold the house on First Street for $75,000 in November.
Ron sold the house on Water Street for $115,000 in December.

Wednesday, May 23, 2007

answer to brain teaser#13, brain teaser#14

Answer to brain teaser #13
27 for Kurt, 30 for Patty, and 33 for Rod.
That's 30% for Kurt and 33-1/3% for Patty.

Method:

Let K, P, and R stand for the quantity each of them had. Let T be the total, K+P+R.
Now, since Kurt's percentage equals Patty's quantity, we get
100*K/T = P.
Similarly,
100*P/T = R plus a fraction. Now, look at the common factor, 100/T. Let's call this F, the factor relating one quantity to the next.
K*F = P and P*F = R (plus a fraction),
and K*F^2 = R (plus a fraction).
The clue about the phonograph leaves us looking for a triple with 33 Rnkfurters for Rod, with Patty getting 33-1/3% (one-third) of the total.
P = T/3
P = (K+P+33)/3 -- remember, R=33
Now, combine this with 100*K/T = P, and a bit of algebra gives us the required answer

Brain teaser#14
We are often dangerous
But to some we are fun
To others we are frightening
Causing them to run
We come together
Though we seem apart
You see me and you hear my brother
Who oft times makes little ones run to their mothers,
I am bright and my brother is loud
And it may seem that we come from a cloud, What are we?

Wednesday, May 9, 2007

Answer to brain teaser #12, brain teaser#13

Answer to brain teaser #12
He looked the man right in the eye and said "get in."

Brain teaser #13
Kurt & Rod were hanging around the window at school munching the last of their Rnkfurers hoard. They spotted their neighbor lounging in the enclosed courtyard, looking hungry.
"Patty O'Furniture! Good to see you! Want a Rnkfurter?"
"A what?"
Kurt handed her the last he had. She bit in, and her face lit up like a newly-coined metaphor.
"Where can I get more of these?"
"Rod and I were about to go order some more. But there's a catch: we always order so one of us gets the quantity that the other has for a percentage." Patty's blank look bade him explain. "In our first batch, we got a total of 25 -- 20 for me, and 5 for Rod. I had 20, and he had 20% of the total."
"And you think you can do that for three people? You get my percentage, and I get Rod's? I don't think we can do it."
Rod had been thinking about it, and rattled off three numbers to her.
"Those aren't right. The last one isn't the right percentage; there's an added fraction."
"So? My mom says they're the same on her old phonograph speeds."
Patty looked at Kurt, each waiting for the other to give an opinion. Finally, she gestured at the empty wrapper in his hand.
"I'll round off a little for a week's supply of these. Let's go!"

Since Rnkfurters come in cases of 25, 50, and 100, they had to leave 10 with the storekeeper to make the numbers work, but they got their munchies.

How many did each student get this time?

Friday, April 27, 2007

Answer to brain teaser #11, brain teaser #12

Answer to brain teaser #11
Mable gave up candy and started boxing to lose 20 pounds.
Bob gave up ice cream and took karate to lose 13 pounds.
Mike gave up pizza and started using the treadmill to lose 27 pounds.
April gave up potato chips and started walking to lose 34 pounds.
Sarah gave up chocolate and started doing yoga to lose 24 pounds.

Brain teaser #12
Two men working at a construction site were up for a challenge, and they were pretty mad at each other. Finally, at lunch break, they confronted one another. One man, obviously stronger, said "See that wheelbarrow? I'm willin' to bet $100 (that's all I have in my wallet here) that you can't wheel something to that cone and back that I can't do twice as far. Do you have a bet?"
The other man, too dignified to decline, shook his hand, but he had a plan formulating. He looked at the objects lying around: a pile of 400 bricks, a steel beam, the 10 men that had gathered around to watch, his pickup truck, a stack of ten bags of concrete mix, and then he finalized his plan.
"All right," he said, and revealed his object.

That night, the strong man went home thoroughly teased and $100 poorer. What did the other man choose?

Sunday, April 15, 2007

answer to Brain teaser #10, brain Teaser #11

Answer to brain teaser #10
Kash simply moved the matchstick on the bottom left hand side to leave the number 9. The number 9 is a 'square' - it's 3 squared!

Note: this is a logic grid puzzle, to think back to when I explained about logic grids. In case you forgot, that is my third post (dated Sunday, February 18, 2007). All the information is in the

Brain teaser #11

Springtime is upon us, and that means that swimsuit weather is coming up quickly! April and four of her friends have all decided to go on a diet to see if they can lose a few unwanted pounds before they have to start trying on swimsuits. Each of the five friends has decided to give up their favorite snack food and to start exercising in order to lose weight. Each person wants to lose a different amount of weight. From the clues given, you will have to figure out how many pounds each person wants to lose, the snack food they are giving up, and the type of exercise they are adding in.

Friends: Mable, Bob, Mike, April, and Sarah
Snacks: Chocolate, Potato Chips, Ice Cream, Candy, and Pizza
Number of Pounds to Lose: 13, 20, 24, 27, and 34
Exercise: Treadmill, Yoga, Karate, Walking, and Boxing


1. Sarah is trying to lose more pounds than the one who has given up candy, but fewer pounds then the one who has begun using the treadmill.

2. Mable is trying to lose exactly 14 pounds fewer than the person walking.

3. Bob (who is not the one taking Yoga) has stopped eating his afternoon bowl of ice cream. Bob is trying to lose exactly 7 pounds fewer than the boxer.

4. Mike is trying to lose exactly 7 pounds fewer than the one who has given up Potato Chips.

5. The woman who has given up chocolate isn't the one trying to lose 27 pounds.

6. April knows that potato chips are a small sacrifice to make as she is trying to get into a bikini.

7. The woman boxer has decided to give up candy to reach her goal.

Wednesday, April 11, 2007

Answer to brain teaser #9, brain teaser #10

Answer to brain teaser #9

1) armadillo (arm-a-deal-o)
2) federal (fed-her-roll)
3) perspire (per-spy-ear)
4) silicone (seal-a-cone)
5) apparent (up-pair-rent)
6) concentration (con-sin-tray-shun)

brain teaser #10

Kashakomin (a.k.a Kash) was jogging in the park, as he did every morning. The morning had been quite uneventful. That was, until he ran past a man sitting on a bench.

On hearing Kash's footsteps, the man looked up. "How would you like to win a little money?" asked the man.

"What do you mean?" asked Kash.

"Just come over here," said the man.

Now, Kash, never liking to turn down an opportunity to win some more 'kash', walked over to the bench.

The man placed seven matchsticks on the bench to form an 8.

"Now, if you can move just one match, can you leave just one square? There can be no leftover lines."

"What? That's ridiculous," said Kash.

But after working on the puzzle for half an hour, Kash finally got the answer, and managed to win

Friday, April 6, 2007

Anser to brain teaser #7, brain teaser #8

Answer to brain teaser #7

This teaser was written in the style of old "pulp" detective novels with a forensics twist.

The janitor cleaned every case in the museum daily, so his prints had reason to be there.

After finding the red fiber and the red smear, Horowitz knew Erika was one of the culprits. She was the only one wearing shiny red clothing, which she has been wearing since the robbery. When she leaned down to place the note in the base of the statue, a thread from her sleeve stuck in the crack. She also didn't think about leaving a red lipstick smear on the duct tape when she ripped a piece off with her teeth after she restrained the guard. However, Erika had to have an accomplice, the guard. The chair he was in was fifty feet away from the glass, yet there was glass on the inside of his collar. This means that he was free and near the glass when it was smashed. He was also much too tall for a five foot tall woman to hit on the head; he had sat in the chair while she secured him with the duct tape.

For the meaning of the note take the first letter of each word and put them in a row. They spell RED HERRING, which was a popular term in detective novels meaning a fake clue to lead you off the trail.

"It was Erika, and the guard." said Horowitz. "But why, Erika? Why come to my office and ask for my help, if you knew I'd catch you?"

"Alright, I admit it, it was me, and I am in love with a security guard," cried Erika. "If I could sell the art my beloved and I would be able to run away together and be happy. I came to your office Mr. Horowitz, because Daddy was about to hire a good Private Eye. I looked for a Private Eye who had no other business. I thought if I found an incompetent one I could cover my crime. I'm sorry Daddy!" Erika began to sob.

Sam Horowitz stood there watching her torn between feeling insulted and waiting for a moment to ask about his fee. Insult or no, steak and lobster sounded good tonight.

That’s all I have to say about brain teasers in general. Stay tuned though… we’ll bring you a new brain teaser every week.

Brain teaser #8
Which phrase from group B belongs with the words in group A?

Group A
Lonely
Patent
Canines
Freighter
Artwork

Group B
Local Election
News Event
Tax Return
Brainy Teaser
Play Date

Sunday, March 25, 2007

bran teasers involving mystery

Brain teasers involving mystery.

Mystery brain teasers are the good old fashioned puzzles that involve foul play and you have to figure out who did what to whomever. These are usually best done in groups where one person knows the answer the others have to guess based on clues and questions you ask the person asking the brain teaser.

Here is this week’s brain teaser:

Brain teaser #7

Private Eye Sam Horowitz sat in his dingy office, watching the paint peel off the walls. He hadn't had a customer all month, and soon he would be out of business if things didn't pick up. That was before she knocked on the door, and entered his office with a flourish. She was a classy dame, looked wealthy too. Her lips were painted bright red, and pearls were sewn on to her red satin dress. Slight of build, standing only five feet tall. As she entered his office, she exuded an aura of desperation.

"My name is Erika Von Doran, and I need your help Detective," she said as she sat down in the chair facing his desk. "My father owns the art gallery Galleria Romana, and yesterday we were robbed; all our priceless paintings have been stolen. I am so upset, I haven't slept since last night! The local police are stumped."

"Two Monet's, four Picasso's, and a Rodin sculpture were stolen. The guard was found taped to a chair at the scene; he claimed that the thieves knocked him out. The janitor was found unconscious on the floor in the office, he claims to remember nothing. Thank goodness we have insurance," sobbed Erika.

"Well," said Horowitz, thinking of the steak and lobsters he would eat when he was done with this case, "I can help, but my fees are high. I am in quite a demand lately. I will meet you and your father at the scene."

"Yes, detective, of course! My father will pay anything you ask; I will have him meet you there," exclaimed Erika. With that she swept out of his office, her blue eyes sparkling like sapphires with hope.

When he arrived at the Galleria, Erika and her father, a large stately man in a pinstriped suit who stood at least six feet tall, were already there. Horowitz saw as he walked in that the janitor and guard were there too.

"Welcome, Detective Horowitz!" Mr. Von Doran boomed as he strode over to Sam and shook his hand. His grip could have broken Horowitz's hand, he was obviously a man of great strength.

"Mr. Von Doran, hello. I will have a look around," said Horowitz, trying to subtly remove his hand from the bearish man's grasp.

"By all means, Mr. Horowitz. I have gathered the evidence and copies of the police reports for you to look at, and I have called back the staff that was here last night when the robbery occurred. Feel free to talk to them. I hope you can find who did this to our family."

Sam was led to scene of the crime. He noted that each painting and the sculpture had been protected in a case behind glass with a lock. The glass had been smashed, and shattered pieces covered the floor. He saw from the police reports that prints of the janitor were found on the cases of all the paintings, and also on what was left of the case that once contained the Rodin sculpture. On the wooden base the sculpture once sat on, there seemed to be crack in the wood, something white was poking out the slightest bit. Horowitz pulled it out with a pair of tweezers. It was a note, which read "Raucous Elephants Dream, Helping Everyone Realize Romana Is No Good".

Horowitz set the note aside, and went back to searching the base with tweezers in hand and his trusty magnifying glass pressed to his eye. Stuck in the crack where the note had been, was a shiny red cloth fiber. Horowitz moved on to the chair where the guard had been, fifty feet from the cases. He examined the pile of duct tape used to secure the guard, and noticed a strange greasy red stain on the torn end of the tape. As he moved on to the police evidence bag, he noticed that a piece of glass was stuck inside the collar of the Blue uniform the guard had been wearing. There was nothing odd about the janitor's green uniform, though.

Horowitz called to the Von Dorans, the guard and the janitor. When they were gathered around him he said, "Now, tell me exactly what happened last night."

The guard, a large man who towered over even Mr. Van Doran, said, "I was walking by the Picasso, and then some one hit me on the back of the head, and I woke up with the police here and the art was gone."

The janitor, a stout greasy little man, said, "I was in the supply closet, when someone put a rag over my mouth, and I lost consciousness."

Erika said, "I was at home when I got the call from Daddy, who said the museum had been robbed."

Mr. Von Doran said, "I was out to sushi with friends when the police called me."

Horowitz then showed them the note left at the base of the statue. "I think the thief is trying to tell us something," he said, "but clever as this thief is, I have determined who took your painting Mr. Van Doran, and the culprits are in this room!"

Hint:
Sometimes clues are merely crimson fish

Sunday, March 11, 2007

Optical illusons part 2

Optical illusions part 2.
Optical illusions work by two conflicting information cues. This makes the brain do a double-take when looking at the image. There are a variety of ways to do this. One such way is to make two separate images merge. Here is one such example:

Brain teaser #6

Sunday, March 4, 2007

answer to brain teaser #4, optical illusions part 1

Optical illusions

what are optical illusions?

These are a form or brain teaser that cannot be solved. They are designed to trick the brain. There are many forms of optical illusions: impossible objects, 2 pictures in one, moving images.

Here is this week’s brain teaser. It’s an optical illusion.


Sunday, February 25, 2007

solution to brain teaser #3, answering riddle brain teasers

Solution to brain teaser #3

Rebbecca Dart: maple tree, backyard, Friday
Sally Frost: ash tree, patio, Monday
Tracy Grand: cherry tree, garden, Wednesday
Wanda Best: spruce tree, front yard, Thursday

How do I answer mind teasers in the form of riddles?

Riddles make you thing laterally and logically. Riddles will commonly rhyme, but it’s not a requirement. Most riddle will pose you a question in a vague and uncommon way. There is no one way to solve riddles. In fact, the only way to learn is to practise.

For example, the riddle: Where will you find roads without cars, forests without trees and cities without houses?

Forces your brain to ponder what it is. It’s vague and an uncommon way to pose the question

In fact, the answer is: a map.

There is simply no way to teach this. It is a matter of perception and practise. To help you practise, here is this week’s brain teaser.

Brain teaser #4

1-2-3-4-5-6

I am a 6 letter word.
Letters 6-5-2 spell out a drink.
Letters 4-5-2-3 spell out a fruit.
Letters 1-2-6 spell out a pet.
Letters 3-2-6 spell out a pest, which often gets eaten by 1-2-6.
What am I?

solution to brain teaser #3, answering riddle brain teasers

Solution to brain teaser #3

Rebbecca Dart: maple tree, backyard, Friday
Sally Frost: ash tree, patio, Monday
Tracy Grand: cherry tree, garden, Wednesday
Wanda Best: spruce tree, front yard, Thursday

How do I answer mind teasers in the form of riddles?

Riddles make you thing laterally and logically. Riddles will commonly rhyme, but it’s not a requirement. Most riddle will pose you a question in a vague and uncommon way. There is no one way to solve riddles. In fact, the only way to learn is to practise.

For example, the riddle: Where will you find roads without cars, forests without trees and cities without houses?

Forces your brain to ponder what it is. It’s vague and an uncommon way to pose the question

In fact, the answer is: a map.

There is simply no way to teach this. It is a matter of perception and practise. To help you practise, here is this week’s brain teaser.

Brain teaser #4

1-2-3-4-5-6

I am a 6 letter word.
Letters 6-5-2 spell out a drink.
Letters 4-5-2-3 spell out a fruit.
Letters 1-2-6 spell out a pet.
Letters 3-2-6 spell out a pest, which often gets eaten by 1-2-6.
What am I?

Sunday, February 18, 2007

Solution to brain teaser #2

31/81.

The total number of possibilities is 324 (6*6*9). The number of completely wrong guesses is 200 (5*5*8). So the number of partially or fully correct guesses is 124 (324-200). The probability is 124 out of 324, which can be reduced to 31 out of 81.

Example of logic grid:






How does a logic grid work in helping me solve brain teasers?

Some brain teasers give you a lot of information. In those instances, you may want to lay your information out neatly in the form of a logic grid. As the name suggests, it is a grid system you fill out based on logic. There is enough information given to you to be able to find the solution. You answer will usually take the form of: --

For starters, here is a relatively easy one for you to have a go. You can compare your answer to the solution posted next week:

Brian teaser #3

Four friends decided to plant a new tree in their yard to celebrate Labor Day. The new trees would each be put in a different area of their yards. As it happened each friend bought a different kind of tree and planted the new tree on a different day of the week. From the clues below, determine the full names of each friend, what kind of tree each bought, where in the yard it was planted, and on what day of the week each tree was planted.

Brain teaser #3
Names: Rebbecca, Sally, Tracy, and Wanda

Last Name: Best, Dart, Frost, and Grand

Trees: ash tree, cherry tree, maple tree, and spruce tree

Location: garden, patio, back yard, and front yard

Days of the Week: Monday, Wednesday, Thursday, and Friday

1. Wanda, whose last name wasn't Frost, didn't plant her spruce tree by the patio.

2. Tracy planted her tree before Mrs. Dart but after the woman who planted the ash tree.

3. Mrs. Best, whose first name wasn't Sally, planted her tree in the front yard, but not on Friday.

4. Rebbecca didn't plant her tree on Monday.

5. Mrs. Grand planted her tree before the woman who planted her tree in the back yard. Rebbecca didn't plant the cherry tree.

6. The trees were planted, in chronological order, as follows: Mrs. Frost, in the garden, Wanda, the maple tree.

Sunday, February 11, 2007

Answer to brain teaser #1, solving probability brain teasers

Answer to brain teaser #1

Red in the face

How do I tell if a mind teaser requires an answer that involves probability?

When you read the brain teaser, the first words on the last line will be ‘how likely’, ‘what are the odds’, ‘what is the probability’, etc.. These types of questions will tell you that probability is involved.

How do I answer brain teasers that involve probability?

That’s easy. You have probably done a little bit of probability sometime in high school. Solving brain teasers involving probability doesn’t get much simpler than this. However, you also need a bit of logic in order to solve the brain teaser – some are not as straightforward as it looks. The answers will make sense if you let you mind think laterally and logically.

Here’s this week’s mind teaser to keep you going.

Brain teaser #2

In Clue (called Cluedo in some countries, including its origin, England), you attempt to solve a murder mystery. There are six possible suspects, six possible weapons that the murderer could have used, and nine possible locations for the murder to have occurred.

If you guess a random suspect, a random weapon, and a random room, what is the probability of getting at least one right?

Sunday, February 4, 2007

answers to solving brain teasers, brain teaser #1

What are Brain Teasers?

Brain teasers are mental puzzles. They are designed to make you think laterally – a form of mental gymnastics. Logic is the key to solving brain teasers, but the answer or possible answers are usually not the first thing that you would think.

There are many categories of brain teasers. Some of these cannot be solved, as were not designed to be solved, or have no solution. A good example of this is optical illusions – they are designed to trick the mind only.

Why should I do brain teasers?

Brain teasers are a way of keeping an active mind. Older people may find enjoyment in solving brain teasers, as it can help them feel young and occupies otherwise free time. Alzheimer’s disease can also be slowed down or prevented by keeping an active mind and body. one way of doing this is to sit down and solve brain teasers.


How do I solve brain teasers?

The answer to some brain teasers is debatable, while some brain teasers have mnore than one ‘correct’ answer. There is not a singular way to find answers to mind teasers. Some requires logic-grids, some require lateral thinking, while others force you to think within constraints. These are multiple techniques to help you solve brain teasers, and you can use them to solve a variety of brain teasers. Eventually, you can think of some yourself

Here’s one to get you started:

faredce

Answer will come in a week’s time.