Brain Teasers & Puzzles
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Every night he is told what to do,
and each morning he do what he is told.
But he still don’t escape your scold.What is he ?
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You decide to play a game with your friend where your friend places a coin under one of three cups. Your friend would then switch the positions of two of the cups several times so that the coin under one of the cups moves with the cup it is under. You would then select the cup that you think the coin is under. If you won, you would receive the coin, but if you lost, you would have to pay.
As the game starts, you realize that you are really tired, and you don’t focus very well on the moving of the cups. When your friend stops moving the cups and asks you where the coin is, you only remember a few things:
He put the coin in the rightmost cup at the start.
He switched two of the cups 3 times.
The first time he switched two of the cups, the rightmost one was switched with another.
The second time he switched two of the cups, the rightmost one was not touched.
The third and last time he switched two of the cups, the rightmost one was switched with another.
You don’t want to end up paying your friend, so, using your head, you try to work out which cup is most likely to hold the coin, using the information you remember.
Which cup is most likely to hold the coin?
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A guy walks into a store and steals a $200 bill from the register without the owners knowledge.
He then buys $150 worth of goods using the $200 bill and the owner gives $50 in change.
How much money did the owner lose?
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A football team won 10 out of the total number of matches they played.
If their win percentage was 40, then how many matches did they play in all ?
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Apart from the United States of America, which other country in the world is officially named “United States”?
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Which room is safer!
An Empty and locked room
Or
A room full of lions that haven’t eaten in 3 months
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Sonia is going on an extended trip for three weeks. She lives in a remote area where there are frequent electrical power outages which can last up to three or four days. Sonia has quite a bit of food in her freezer which would go bad if it thawed and then re-froze. She does have digital clock and a VCR which would flash 12:00 if the power went out.
Unfortunately the clock and VCR flash even if the power only goes out for a few seconds.
What can Sonia do so that when she returns home she will be able to determine whether the power was out long enough to thaw her food?
Asking a neighbour whether the power was out, isn’t a reliable option because the nearest house is half a mile away, and one house may have power, while another house may have no power. She won’t be able to have a neighbour check on her house every day, and has no one to house sit.
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I ask people at random if they have two children and also if one is a boy born on a tuesday. After a long search I finally find someone who answers yes.
What is the probability that this person has two boys?
Assume an equal chance of giving birth to either sex and an equal chance to giving birth on any day.
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Six Tasmanian camels traveling on a very narrow ledge, encounter six Tasmanian camels coming the other way.
As everyone knows, Tasmanian camels never go backwards, especially when on a precarious ledge. The camels will climb over each other, but only if there is a camel sized space on the other side.
The camels did not see each other until there was only exactly one camel’s width between the two groups.
How can all camels pass, allowing both groups to go on their way, without any camel reversing?
Hint: to help visualize, use paper clips or coins.
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It is green but not a leprechaun
It has lights but It is not a car
It has a skirt but It is not a girl
It has things hanging on it but It is not a clothes hanger
It has branches but It is not a bank
It have needles but no threadWhat is It ?
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