The More You Take Away Riddle
Hint:
The Same Birthday Riddle
How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?
Hint:
Only twenty-three people need be in the room, a surprisingly small number. The probability that there will not be two matching birthdays is then, ignoring leap years, 365x364x363x...x343/365 over 23 which is approximately 0.493. this is less than half, and therefore the probability that a pair occurs is greater than 50-50. With as few as fourteen people in the room the chances are better than 50-50 that a pair will have birthdays on the same day or on consecutive days. Did you answer this riddle correctly?
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The Gardners Riddle
Gretchen and Henry were discussing their new neighbors, the Gardners. Gretchen mentioned that she met two of the daughters, and they each had blond hair.
"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"
After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?
"I have met all of the sisters," replied Henry, "and the probability that both of the girls you met would have had blond hair, assuming you were equally likely to meet any of the sisters, is exactly 50%. Do you know how many children there are?"
After thinking for a minute, Gretchen asks if the family is abnormally large. When Henry replies that it is not, Gretchen tells him how many girls are in the family. What number did she say?
Hint:
Gretchen said that there were 4 girls in the family, three of whom were blond.
This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.
Other numbers would work, but the next pair would lead to a rather large family. Did you answer this riddle correctly?
YES NO
This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.
Other numbers would work, but the next pair would lead to a rather large family. Did you answer this riddle correctly?
YES NO
The Prime Number Riddle
Two hundred people in an auditorium are asked to think of a single digit number from 1 to 9 inclusive and write it down. All those who wrote down a prime number are now asked to leave. Ninety people remain behind in the hall. How many of these are expected to have written down an odd number?
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
Expected number of odds is 2/5 * 90 = 36 Did you answer this riddle correctly?
YES NO
The Serial Killer Husband
A man kills his wife. Many people watch him doing so. Yet no one will ever be able to accuse him of murder. Why?
Hint:
Solve This
Hint:
Ask a question! Leave a note and we'll help you find the answer to any riddles it is you're looking to solve or help you with creating your own! Did you answer this riddle correctly?
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Solved: 44%
Going The Wrong Way
A truck driver is going down a one way street the wrong way, and passes at least ten cops. Why is he not caught?
Hint:
Because he was not driving! Hes walking on the sidewalk. Did you answer this riddle correctly?
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A London Scholar Riddle
There was a London scholar walking along.
He pulled of his gloves an Drew of his
head. What was that London scholars name?
He pulled of his gloves an Drew of his
head. What was that London scholars name?
Hint: The name was inside the sentence.
See Me In The Water Riddle
Hint:
A Beautiful Insect
I am a type of insect
But one that is beautiful
I look just like a large moth
But one that is colorful
What am I?
But one that is beautiful
I look just like a large moth
But one that is colorful
What am I?
Hint:
Teasing Fruit Riddle
Hint:
A Piece On A Chessboard
This is in a deck of cards
And a piece on a chessboard
Shes the monarch of Britain
Who knights people with a sword
Who is she?
And a piece on a chessboard
Shes the monarch of Britain
Who knights people with a sword
Who is she?
Hint:
Add Some Butter
This popular grain is yellow
And is grown outside in a field
Many people add some butter
Once its cooked and the husk is peeled
Its a?
And is grown outside in a field
Many people add some butter
Once its cooked and the husk is peeled
Its a?
Hint:
Great As Chips And Fries
Hint:
Evacuating From A Hurricane Riddle
You are evacuating from a hurricane threatened city. You drive by the corner of a street. An old injured lady, your best friend (who has saved your life 3 times), and the woman of your dreams are standing there. You only have room for you and someone else in your car. How do you save all of them?
Hint:
You give the car to your best friend. He takes the lady to the hospital in your car. You wait with the woman of your dreams until your friend comes back in his van which can carry 5 people. Then you leave before the hurricane comes. Did you answer this riddle correctly?
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