Puzzle 109
If I can boil 2 eggs in 10 minutes.
How long will it take me to boil 5 eggs?
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Hint
Be careful with your thinking.
Answer
Exactly the same time!
Puzzle 110
Take away eight of the matches below, and leave one matchstick behind.
There are no hidden matchsticks.
Note: this puzzle is not interactive, and cannot be clicked.
Puzzle Copyright © Lloyd King
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Hint
You'll need to think a little laterally.
Answer
If you look very carefully, you will see that there are actually two matchsticks under the other seven, so you can take away eight matchsticks and still leave one behind.
Puzzle 111
Which of the shapes is identical to the first one?
There might be more than one.
Puzzle Copyright © Robert A. Hartmann
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Hint
Try to rotate them around in your head, but watch out for mirror images.
Puzzle 112
What word is the same backwards and upside down?
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Hint
Which letters look the same upside down and backwards?
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