A collection of Math Riddles for fun and pleasure! Tease your brain with these riddles, then click to show or hide the answer. (Note: You may need to enable JavaScript on your browser for the answers to show properly.)

Also visit our Math Trivia page for more arithmetic riddles, algebra riddles, geometry riddles, statistics riddles etc.

- Why should you never mention the number 288 in front of anyone?
- Which weighs more? A pound of iron or a pound of feathers?
- How is the moon like a dollar?
- What is alive and has only 1 foot?
- When do giraffes have 8 feet?
- How many eggs can you put in an empty basket?
- What coin doubles in value when half is deducted?
- What is the difference between a new penny and an old quarter?
- If you can buy eight eggs for 26 cents, how many can you buy for a cent and a quarter?
- Where can you buy a ruler that is 3 feet long?
- If there were 9 cats on a bridge and one jumped over the edge, how many would be left?
- If you take three apples from five apples, how many do you have?
- What has 4 legs and only 1 foot?
- How many times can you subtract 6 from 30?
- If one nickel is worth five cents, how much is half of one half of a nickel worth?
- How many 9's between 1 and 100?
- Which is more valuable - one pound of $10 gold coins or half a pound of $20 gold coins?
- It happens once in a minute, twice in a week, and once in a year. What is it?
- How can half of 12 be 7?
- When things go wrong, what can you always count on?
- Which month has 28 days?
- What’s the easiest way to double your money?
- What occurs twice in a week, once in a year but never in a day?
- Where do fish keep their money?
- Why is the longest human nose on record only 11 inches long?
- Why are diapers like 100 dollar bills?
- A street that is 40 yards long has a tree every 10 yards on both sides. How many trees are there on the entire street?
- What goes up and never comes down?
- What did one math book say to the other math book?
- I am an odd number; take away a letter and I become even. What number am I?
- As I was going to St. Ives

I met a man with seven wives.

Each wife had seven sacks,

Each sack had seven cats,

Each cat had seven kits;

Kits, cats, sacks and wives,

How many were going to St. Ives? - You want to cross a bridge to get to the other side of the crevice, but there's a problem. The bridge, which takes an hour to walk across, is guarded in the middle by a guard who wakes up every half hour and carries back anybody crossing the bridge back to where he or she came from. How long does it take for me to get to the other side?
- What are the 10 types of people in the world?

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