# 20 PIGEONS SAT ON ONE TREE HOW MANY WILL UH FLEW IT IN H VERY RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

#### Popular Searches

Terms · Privacy · Contact

## Yahtzee Riddle

Hint: Think of the probability of NOT getting a full house.
5/9

The answer is NOT 2/3 because you cannot add probabilities. On each roll, the probability of getting a 2 or a 4 is 1/3, so therefore, the probability of not getting a 2 or a 4 is 2/3. Since the die is being rolled twice, square 2/3 to get a 4/9 probability of NOT getting a full house in two rolls. The probability of getting a full house is therefore 1 - 4/9, or 5/9.
Did you answer this riddle correctly?
YES  NO

## The Cheap Mp3 Player

Hint:
With only 6 tracks on the player:
The first chapter has been set to play first. The probability of the next 5 chapters playing in order is 1/5! = 1/120.

With the music on the player as well:
Seeing as I don't care about when the music plays, it doesn't change anything. The answer is still 1/120.
Did you answer this riddle correctly?
YES  NO
Solved: 50%

## The Coin Toss Riddle

Hint: Think what would be most likely to happen if you chose HHH, would this be a good decision?
The answer is to let your friend go first. This puzzle is based on an old game/scam called Penny Ante. No matter what you picked, your friend would be able to come up with a combination which would be more likely to beat yours. For example, if you were to choose HHH, then unless HHH was the first combination to come up you would eventually lose since as soon as a Tails came up, the combination THH would inevitably come up before HHH. The basic formula you can use for working out which combination you should choose is as follows. Simply take his combination (eg. HHT) take the last term in his combination, put it at the front (in this case making THH) and your combination will be more likely to come up first. Try it on your friends!
Did you answer this riddle correctly?
YES  NO

## The Prime Number Riddle

Hint: Remember that 1 is not a prime number.
Those that remain behind must have written {1,4,6,8,9} and from this only {1,9} are odd. The probability of an odd number is thus 2/5.
Expected number of odds is 2/5 * 90 = 36
Did you answer this riddle correctly?
YES  NO

## I Have A Tail Riddle

Hint:
A coin
Did you answer this riddle correctly?
YES  NO
Solved: 64%

## A Chaotic Outsider

Hint:
Did you answer this riddle correctly?
YES  NO
Solved: 47%

## Standing My Test

Hint:
Time
Did you answer this riddle correctly?
YES  NO
Solved: 87%

## Snowman Baby Crib Riddle

Hint:
Christmas cards
Did you answer this riddle correctly?
YES  NO
Solved: 34%

## Crossing Safety Riddle

Hint:
The two boys go across. One of them get out. The other one goes back. He gets out and the man gets in. He goes across. Then the man gets out and the other boy gets in and goes across. Then the boy that was left gets in and now they both go across together.
Did you answer this riddle correctly?
YES  NO
Solved: 77%

## The Safest Room

Hint:
They'd both be safe because the lions that havent eaten in 3 months would be dead.
Did you answer this riddle correctly?
YES  NO
Solved: 71%