Riddle: You walk up to a mountain that has two paths. One leads to the other side of the mountain, and the other will get you lost forever. Two twins know the path that leads to the other side. You can ask them only one question. Except! One lies and one tells the truth, and you don't know which is which. So, What do you ask?
Answer: You ask each twin What would your brother say?. This works because.... Well let's say the correct path is on the left side. So say you asked the liar "What would your brother say?" Well, the liar would know his brother was honest and he would say the left side, but since the liar lies, he would say right. If you asked the honest twin the same question, he would say right, because he knows his brother will lie. Therefore, you would know that the correct path was the left!
Riddle: A logician with some time to kill in a small town decided to get a haircut. The town had only two barbers, each with his own shop. The logician glanced into one shop and saw that it was extremely untidy. The barber needed a shave, his clothes were unkempt, and his hair was badly cut. The other shop was extremely neat. The barber was freshly shaved and spotlessly dressed, his hair neatly trimmed. Why did the logician return to the first shop for his haircut?
Answer: Each barber must have cut the other's hair. The logician picked the barber who had given his rival the better haircut.
Riddle: George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Using logic, is Elizabeth drinking coffee or soda?
Answer: Elizabeth is drinking coffee. The letter E appears twice in her name, as it does in the names of the others that are drinking coffee.
Riddle: A man went on a trip with a fox, a goose and a sack of corn. He came upon a stream which he had to cross and found a tiny boat to use to cross the stream. He could only take himself and one other - the fox, the goose, or the corn - one at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How does he get all safely over the stream?
Answer: Take the goose over first and come back. Then take the fox over and bring the goose back. Now take the corn over and come back alone to get the goose. Take the goose over and the job is done!
Riddle: 81 x 9 = 801. What must you do to make the this equation true?
Answer: Turn it upside down. 108 = 6 x 18.
Riddle: One of the four words does not belong with the other three. Which word does not belong? What is it that the others have in common? 1. Green, yellow, red, blue. 2. April, December, November, June. 3. Cirrus, calculus, cumulus, stratus. 4. Carrots, radishes, potatoes, cabbages. 5. Fork, comb, rake, shovel.
Answer: 1. Green. Yellow, red and blue are primary colors, green is not. 2. December. The other months have only 30 days. 3. Calculus. The others are cloud types. 4. Cabbage. The others are vegetables that grow underground. 5. Shovel. The others have prongs.
Riddle: If you have two coins which total 35 cents and one of the coins is not a dime, what are the two coins?
Answer: A quarter and a dime. One coin is not a dime, but the other one is.
Riddle: Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
Answer: Your eyes.
Riddle: You buy me taken apart, To redo what has been undone; Four of my pieces have one sharp corner, The rest of them have none. What am I?
Answer: A jigsaw puzzle.
Riddle: What only works the first time you use it?
Answer: A match.