Math Riddles

These Math Riddles are based on math concepts and can be solved with a bit of math and logic. These fun riddles can surely give you a tough time.

Handshakes Between 7 People

How many handshakes occur when a group of 7 people shake hands exactly once with every other person in the group?

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In 12 years, 4 friends will be 100 years old in total. What will their total age be in 8 years?

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There are 4 keys and 4 locks. What is the maximum number of times you need to try the locks so as to match all 4 keys to their locks?

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Mr. Smith has two children. At least one of them is a boy. What is the probability that both children are boys?

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Three kinds of apples are mixed randomly in a box. How many apples must you take out to be sure of having at least two apples of one kind?

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