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.

Probability Other Child Is a Boy

Mr. Smith has two children. If the older child is a boy, what is the probability that the other child is also a boy?

Riddle Answer

The Length of One Shoelace

The length of one shoelace is 20cm and half a shoelace.

What is the length of 2 such shoelaces?

Riddle Answer

Carton of Eggs

How many times can you subtract 5 eggs from a carton holding 25 eggs?

Riddle Answer

3 times a Number

Three times what number is no larger than two times that same number?

Riddle Answer

Six Trees in Six Hours

If three men can chop down three trees in three hours, how many men will it take to chop down six trees in six hours?

Riddle Answer