Brain Teasers http://www.aesincorp.com/Brainteasers.html 1. Do they have a 4th of July in England? 2. How many birthdays does the average man have? 3. Some months have 31 days; how many have 28? 4. A woman gives a beggar 50 cents; the woman is the beggar's sister, but the beggar is not the woman's brother. How come? 5. Why can't a man living in the USA be buried in Canada? 6. How many outs are there in an inning? 7. Is it legal for a man in California to marry his widow's sister? 8. Two men play five games of checkers. Each man wins the same number of games. There are no ties. Explain this. 9. Divide 30 by 1/2 and add 10. What is the answer? 10. A man builds a house rectangular in shape. All sides have southern exposure. A big bear walks by, what color is the bear? Why? 11. If there are 3 apples and you take away 2, how many do you have? 12. I have two US coins totaling 55 cents. One is not a nickel. What are the coins? 13. If you have only one match and you walked into a room where there was an oil burner, a kerosene lamp, and a wood burning stove, which one would you light first? 14. How far can a dog run into the woods? 15. A doctor gives you three pills telling you to take one every half-hour. How long will the pills last? 16. A farmer has 17 sheep, and all but 9 die. How many are left? 17. How many animals of each sex did Moses take on the ark? 18. A clerk in the butcher shop is 5' 10'' tall. What does he weigh? 19. How many two-cent stamps are there in a dozen? 20. What was our President's name in 1970? 21. How many times can you subtract the number 5 from 25? 22. How long will it take to cut a wooden log into 10 pieces if it takes one minute to make each cut? 23. What is the next letter in the following sequence? M A M J J A S O 24. If you saw your mirror image holding a letter "d" in your left hand, what would you be doing? 25. A police officer sees a school bus driver going the wrong way down a one-way street. Yet he doesn't stop the man or do anything about the situation. Why? 26. There is a town in Northern Ontario where 5% of all the people living in the town have unlisted phone numbers. If you selected one hundred names at random from the town's telephone directory, on average how many of these people selected would have unlisted phone numbers? 27. What is so unusual about this sentence? "Jackdaws love my big sphinx of quartz." 28. If you were to step into a room filled with gas and strike a match, what would happen? 29. Before Mount Everest was discovered, what was the tallest mountain in the world? 30. If it takes 6 men 6 days to dig 6 holes, how long will it take one man to dig half a hole? 31. Forward I'm heavy, backward I'm not. What am I? 32. Based on the laws of the US Constitution there are 5 requirements a person must meet in order to become the president of the US. The candidate must be: 1) at least 35 years old 2) a citizen of the US 3) must have resided in the US for at least 14 years 4) must have been born in the US. What is the fifth requirement? 33. Which is correct, "The yolk of the egg is white." or "The yolk of the egg are white." 34. In Okmulgee, OK you cannot take a picture of a man with a wooden leg. Why not? 35. There is an ancient invention still used in some parts of the world today that allows people to see through walls. What is it? 36. A pair of twins is how many people? 37. How can 5 people divide 5 donuts so that each gets one donut and have one donut left on the plate? 38. What 5-letter word does every Harvard graduate pronounce wrong? 39. After a long day Gary went to bed at 10:00 p.m., wound his alarm clock and set it for noon the next day. How many hours did he sleep before the alarm woke him? 40. Jack charges $5 to cut a log into 2 pieces. How much will Jack charge to cut a log into 4 pieces? 41. There are two ships of equal size and strength. One is made of wood and the other of steel. Can you explain which one is heavier? 42. NASA was considering sending canaries into space to study them under zero gravity. The project was scrapped when someone realized that in spite of having sufficient water supplies, they could die of dehydration within a few hours. Why? 43. What substance is denser in its liquid form than in its solid form? 44. Why are 1990 American bills worth more than 1989 American bills? 45. How could you give someone $63 using six bills without using $1 bills? 46. A taxi driver took a group of people to the airport. The terminal is normally an hour away but with traffic being extra heavy, it took a full hour and a half. On the return trip the traffic was still as heavy, yet it took only 90 minutes. Why? 47. Even if they are starving, natives living in the Arctic will never eat a penguin's egg. Why not? 48. How would you rearrange the letters in "new door" to make one word? 49. Mr. and Mrs. Plum have 6 daughters and each daughter has 1 brother. How many people are in the Plum family? 50. What is the most common mechanical mode of transportation people use to get to work each day? 51. If a grandfather clock takes 5 seconds to strike 6:00, how many seconds will it take to strike 12:00? 52. Mr. and Mrs. Roberts have 5 children. Half of them are boys. How is this possible? 53. Assuming you are paying, is it cheaper to take one friend to the movies twice or two friends to the movie at the same time? 54. What is the next letter in the following sequence? o t t f f s s 55. In a base ball game three players hit home runs, two of them with the bases loaded, yet not a single man crossed the plate. How? (2 answers) 56. A secretary is making coffee. Her earring drops off and falls into the cup. There is coffee in the cup but the earring doesn't get wet. How? 57. How much dirt is there in a hole 3 feet x 3 feet x 3 feet? 58. What letter comes next in the following sequence? WLCN 59. A man walks into a bar and orders a glass of water. The bartender turns around and puts a gun in the man's face. The man says thank you and leaves. Why? 60. If there are fifteen crows on a fence and the farmer shoots a third of them, how many are left? 61. In a hardware store, you ask the price of an item on display. Practically every hardware store carries this item, for no home should be without it. The following conversation takes place. Clerk: The price is a quarter each. Customer: That means seventy-five cents for 100. Clerk: That's right. Customer: Well, I'll take fifty seven. Clerk: That will be fifty cents. What is the man buying? 62. Correct this equation by repositioning one part. 62 - 63 = 1 63. Correct the same equation by repositioning one number. 62 - 63 = 1 64. What can go up a chimney down and can't go down a chimney up? 65. A gentleman leaves home, proceeds a short distance and turns left. He goes another short distance and turns left again. He goes another short distance, then goes home. As he nears home he sees two masked men. Who are the two masked men? 66. How many days of the week start with the letter "T"? What are they? 67. What is the product of the following series: (x-a), (x-b), (x-c),.....(x-z)? 68. A man wanted to get into an exclusive club, but he needed a password. So he listened as other members were going in. When the first man knocked, the doorman said twelve, the man answered, six. When the second man knocked, the doorman said, six, the man answered, three. Our friend thought he knew the pattern so he knocked on the door. The doorman said, ten our friend answered, five. He was not let into the club. Why? 69. What is "odd" about the number: 8549176320? 70. In a small town, there was a man who everyone thought was foolish. When people offered to give him 50 cents or a 5-dollar bill, he always chose the 50 cents. They enjoyed offering the money and laughing at his obviously foolish choice. Why was he really the wisest man in town? 71. The Two Brothers - An Arab sheik tells his two sons to race their camels to a distant city to see who will inherit his fortune. The one whose camel is slower will win. The brothers, after wandering aimlessly for days, ask a wise man for advice. After hearing the advice they jump on the camels and race as fast as they can to the city. 72. The Detective - Many years ago a private detective had to hire a new assistant. He had three candidates and he decided to give them a little quiz. He said, "Look Guys, there's a crime that needs to be solved and there's a clue in one of the public libraries in Brooklyn. The clue is stuck inside a book, between pages 165 and 166. Two of the guys jumped up and bolted out the door. The third guy just sat there. The private detective said to the man who remained, "You got the job." Why did he get the job?
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