Mathematics Riddles

A collection of Mathematics 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, geometry riddles, algebra riddles,calculus riddles etc

Fractions

1. Who invented fractions? Henry the Eighth
2. What is 8 divided in two parts? Vertically it is 3; horizontally it is 0.
3. How many tents will a campground hold? Ten tenths since that adds up to a whole.
4. Why is simplifying a fraction like powdering your nose? It improves the appearance without changing the value.

 

 

Trigonometry

5. What do you call a teapot of boiling water on top of mount everest? A high-pot-in-use.
6. Why did the identity sin(2r) = 2sin(r) get turned down for a loan? Because it needed a cos(r). (co-signer)
7. Why do you rarely find mathematicians spending time at the beach? Because they have sine and cosine to get a tan and don't need the sun.
8. What does trigonometry have in common with a beach? Tan Gents

Topography

9. Why did the chicken cross the Möbius strip? To get to the same side.
10. What's non-orientable and lives in the sea? Mobius Dick.

Vector

11. What do you get if you cross a mountain climber with a mosquito? Nothing. You can't cross a scalar with a vector.

12. What do you get if you cross an elephant with a zebra? Elephant zebra sin theta in a direction mutually perpendicular to the two as determined by the right hand rule.
13. What is the definition of a vector space? A set V satisfying the axiom that for any x in V, x has a little arrow drawn over it.

 

 

General

14. Why is math a violent subject? Because it has mean values, cross products and warring fractions.
15. What is a dilemma? A lemma that proves two results.
16. How do you tell that you are in the hands of the Mathematical Mafia? They make you an offer that you can't understand.
17. What is the square root of ab? Absurd.
18. How does a mathematician induce good behavior in her children? I've told you n times, I've told you n+1 times...
19. If only you and dead people can read hexadecimal, how many people can read hexadecimal? 51, 006 (DEAD in hexadecimal is 51, 005)
20. What did Pythagoras say when he was confronted by the square root of 2? There has to be a rational explanation for this....
21. How does a Mathematician support himself? With Brackets.
22. How will a mathematician win a war easily? By putting the enemy in close brackets.

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