Kid-Friendly Number Riddles
I am an odd number. Take away one letter and I become even. What number am I?
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Seven.
Add me to myself and multiply by four. Divide by eight and I return. What number am I?
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Any number.
If two is company and three is a crowd, what are four and five?
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Nine.
A pizza has 8 slices. You eat half. How many slices remain?
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Four.
Three coins add to 35 cents and one is not a nickel. What are they?
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A quarter and two nickels.
What four-digit number adds to 2 and reads the same backward?
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1001.
How many sides does a circle have?
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Two, inside and outside.
If there are three apples and you take away two, how many do you have?
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Two.
What starts with P, ends with E, and has many letters?
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Post office.
A bus has 10 kids. Four get off and two get on. How many kids are on it?
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Eight.
Classroom Math Practice
Which weighs more, a pound of feathers or a pound of bricks?
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Neither, they weigh one pound.
How many times can you subtract 5 from 25?
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Once.
Double my number and add 10 to get 34. What is my number?
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12.
What three numbers give the same result when added or multiplied?
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1, 2, and 3.
A snail climbs 4 feet by day and slips 3 by night. How many days to reach 10 feet?
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Seven days.
What number comes next: 5, 10, 15, 20?
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25.
What shape has three sides?
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A triangle.
How many quarters make one dollar?
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Four quarters.
If 6 plus 7 equals 13, what is 13 minus 7?
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6.
What is half of 18?
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9.
Fun Math Extras
I have a face and hands but no arms. What am I?
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A clock.
What tool has keys that help with numbers?
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A calculator.
If you skip count by twos after 2, what comes next?
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4.
What is 3 groups of 5?
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15.
What number is one less than 100?
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99.
What fraction means one part out of two equal parts?
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One half.
What number is 10 more than 37?
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47.
I am a line that divides a fraction top from bottom. What am I?
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A fraction bar.
What do you call the answer to an addition problem?
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A sum.
I am the happy moment when numbers make sense. What am I?
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A math aha moment.
FAQ
Are answers included?
Yes. Every riddle includes the answer.
Good for younger kids?
Yes. Most use arithmetic, shapes, and simple logic.
Want more kid math?
See math riddles for kids.