Math Riddles - Page 2

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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