# Math Riddles

A mother and father have six sons and each son has one sister. How many people are in that family?
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Sheilah is now two-thirds of Sally’s age. In six years, Sheilah will be four-fifths of Sally’s age. In 15 years, Sheilah will be seven-eighths as old as sister Sally. If they are both under the age of ten, how old are they now?
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What is the four-digit number (no zeros) in which the third digit is the number of “winds,” the first digit is one-half of the third, the second digit is double the third and the last digit is one-half the sum of the first three?
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Arrange four eights(9) and a one(1) and only one mathematical symbol to make it equal to 100
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If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?
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Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?
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2 men catch 2 fish in 2 minutes. At this rate, how many men could catch 500 fish in 500 minutes?
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If two’s company and three’s a crowd, what are four and five?
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Why should you never mention the number 288 in front of anyone?
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Rob and Mark live in different parts of town but attend the same high school. Mark left for school ten minutes before Jose and they met in the park. Who was closer to school when they met?
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What are the next three numbers in this series? 4, 6, 12, 18, 30, 42, 60, 72, 102, 108,…?
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A boy is twice as old as his sister, and half as old as their father. In 50 years, his sister will be half as old as their father. How old is the boy now?
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Can you take 9 from 6, 10 from 9, 50 from 40 and still be left with 6?
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Add 2 to 200 four times? What do you have?
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I’m there once in a minute, twice in a moment but never in a thousand years. Who am I?
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How many two cent stamps are there in a dozen?
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There are 10 apples with you, and 10 friends who want them. You give each an apple, yet one apple remains in the basket…how is this possible?
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A 40-yard long street has a tree every 10 yards on both sides. How many trees are there?
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A woman has 7 daughters and they each have a brother, how many children does she have?
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A frog fell into a hole that was 14½ feet deep. He could jump 3 feet, but he slid back a foot each time he jumped. How many jumps does it take him to get out of the hole?
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