1. A gambler is holding 3 coins. One is an ordinary quarter, the second has 2 heads, and the third has 2 tails. The gambler chooses one of the coins at random and flips it, showing heads. What is the likelihood that the other side is tails? egU中国英语学习网
2. As I was walking my dog to the market I met an elderly couple going in the opposite direction with their 3 sons and 3 daughters. Each son had 2 dogs of his own and each dog had 3 fleas. Each daughter had 2 cats and each cat had 2 fleas. In total, how many persons, animals and insects were going to the market? egU中国英语学习网
3. My daughter has many sisters. She has as many sisters as she has brothers. Each of her brothers has twice as many sisters as brothers. How many sons and daughters do I have? egU中国英语学习网
4. A plane crashed and every single person on board this flight was killed, yet...there we're survivors. Explain how? egU中国英语学习网
5. How many 1 foot by 1 foot bricks would it take to complete a building that's 20 feet long on all four sides and 20 feet high? egU中国英语学习网
6. A cop was walking past a restaurant when he heard someone scream, "No John, not the gun!" He ran inside and saw a doctor, a lawyer, a milkman, and a dead body on the floor. He promptly walked over to the milkman and arrested him. He didn't witness the shooting and there was no apparent evidence to prove who shot the person and no one told him who the killer was. How did the policeman instantly know it was the milkman? egU中国英语学习网
7. What is so special about this sequence below?egU中国英语学习网
8 5 4 9 1 7 6 10 3 2 0 egU中国英语学习网
8. A horse is tied to a five-meter rope, six meters away from it was a bail of hay. Without breaking the rope, the horse was able to get to the bail of hay. How is this possible? egU中国英语学习网
9. Mary was making apricot jam. She put all the apricots in the pot and stirred them up. Then she remembered she had to add 1 ounce of lemon juice for every two apricots. How did she figure out how much lemon juice to put? egU中国英语学习网
10. Steve and Sally where sitting in their family room one night. While Steve was watching TV; his wife Sally was reading. All of a sudden the power went out and Steve decided to go to bed, but Sally kept on reading. With no use of artificial light, Sally kept on reading. How? egU中国英语学习网
Answers to Riddle (3) 1. One in three, since there're 3 heads, and only one of them has tails opposite. egU中国英语学习网
egU中国英语学习网
2. Two. Just my dog and I. egU中国英语学习网
egU中国英语学习网
3. 4 daughters, 3 sons. egU中国英语学习网
egU中国英语学习网
4. There were married people on the flight… only "single” people died. egU中国英语学习网
egU中国英语学习网
5. Only 1… the “last brick” you put in will complete it” egU中国英语学习网
egU中国英语学习网
6. The milkman was the only male. The doctor and lawyer were females, so the cop knew that “John” was the milkman. egU中国英语学习网
egU中国英语学习网
7. The numbers are in alphabetical order. (eight, five, four, nine, one, seven, six, ten, three, two, zero) egU中国英语学习网
egU中国英语学习网
8. The other end of the rope is tied to nothing. egU中国英语学习网
egU中国英语学习网
9. She counted the pits. egU中国英语学习网
egU中国英语学习网
10. Sally was blind… she was reading a book by Braille.egU中国英语学习网
