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Brain Teaser 1 www.mathsrevision.com What is the significance of the following: The year is 1978, thirty-four minutes past noon on May 6th. The time and.

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Presentation on theme: "Brain Teaser 1 www.mathsrevision.com What is the significance of the following: The year is 1978, thirty-four minutes past noon on May 6th. The time and."— Presentation transcript:

1 Brain Teaser 1 What is the significance of the following: The year is 1978, thirty-four minutes past noon on May 6th. The time and month/date/year American style calendar are 12:34, 5/6/78.

2 Brain Teaser 2 How much dirt would be in a hole 6 feet deep and 6 feet wide that has been dug with a square edged shovel? None. No matter how big a hole is, it's still a hole: the absence of dirt.

3 Brain Teaser 3 What can go up a chimney down, but can't go down a chimney up? An umbrella.

4 Brain Teaser 4 What is it that goes up and goes down but does not move? The temperature

5 Brain Teaser 5 I dig out tiny caves, and store gold and silver in them. I also build bridges of silver and make crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs my help, yet many people are afraid to let me help them. Who am I? A Dentist.

6 Brain Teaser 6 When asked how old she was, Mary replied, "In two years I will be twice as old as I was five years ago." How old is she? 12

7 Brain Teaser 7 An elderly man is going for a walk. Two young men in excellent physical condition are directly behind him, sprinting toward him. No matter how fast they run, they do not catch up with the man. Why can't the men catch up with the elderly man and where are all three people? The three people are on treadmills in a gym.

8 Brain Teaser 8 A steady stream of people enter Mike's place of business and remove its treasured belongings. The people do not pay for what they take. Mike allows them to take as much as they can carry as long as they keep their mouths shut. What are the people taking and which type of business employs Mike. The people are taking books and Mike works for a Library.

9 Brain Teaser 9 There is a low railroad bridge in your town. One day you see a large truck stopped just before the underpass. When you ask what has happened, the driver tells you that his truck is one inch higher than the indicated height of the opening. This is the only road to his destination. What can he do to get through the underpass the easiest way? Let enough air out of the tires to lower the truck.

10 Brain Teaser 10 Little Johnny buys 10 trees at a local nursery. How does he plant these 10 trees in 5 rows with 4 in each row? Draw a 5 pointed star. Plant one tree at each point and one tree where the sides intersect.

11 Brain Teaser 11 I have four letters. The first two stand for a boy. The first three stand for a girl. All of my letters stand for brave boy. What word am I? Hero

12 Brain Teaser 12 My brother, the local bus driver, was telling me that recently he was driving a bus full of people and no-one got off on the way. However, at the end of the journey, there was not a single person left on the bus. How? Everyone on the bus was married and therefore not single.

13 Brain Teaser 13 We were four, one was cut and we were five. What are we? The answer is the Roman numeral IV. It stands for 4, and if the one (I) is taken out, it becomes Roman numeral V, which is five.

14 Brain Teaser 14 Jeff had 17 rings and all but 9 were dropped down the drain, how many did he have left? Nine.

15 Brain Teaser 15 Correct the following equation so that it makes sense by freely moving the given four digits but without introducing any additional mathematical symbols. 79 = = 49

16 Brain Teaser 16 How quickly can you find out what is unusual about this paragraph? It looks so ordinary that you would think hat nothing was wrong with it at all and, in fact, nothing is. But it is unusual. Why? If you study it and think about it you may find out, but I am not going to assist you in any way. You must do it without coaching. No doubt, if you work at it for long, it will dawn on you. Who knows? Go to work and try your skill. Par is about half an hour. The paragraph does not contain any instances of the letter 'e', the most common letter in the English alphabet.

17 Brain Teaser 17 A clerk in the butcher shop is 5 feet 10 inches tall. What does he weigh? Meat.

18 Brain Teaser 18 If there are three apples and you take away two, how many do you have? Two.

19 Brain Teaser 19 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? The Match

20 Brain Teaser 20 Two men play five games of checkers. Each man wins the same number of games. There are no ties. Explain this. The two men weren't playing each other.


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