| As in philosophy, there are transcendental numbers |
| Much as with people, there are irrational, perfect, complex numbers |
| There are curves that fill a plane without holes |
| Among all shapes with the same perimeter a circle has the largest area. |
| Everything you can do with a ruler and a compass you can do with the compass alone |
| Everything you can do with a ruler and a compass you can do with the compass alone |
| In a group of 23 people, at least two have the same birthday with the probability greater than 1/2 |
| There are just five regular polyhedra |
| There are shapes of constant width other than the circle. One can even drill square holes.
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| A sphere has two sides. However, there are one-sided surfaces. |
| Bats always turn left when exiting a cave!
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| Astronauts are not allowed to eat beans before they go into space because passing wind in a spacesuit damages them.
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| The Guinness Book of Records holds the record for being the book most often stolen from public libraries.
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| The glue on Israeli postage is certified kosher. |
| An old law in Bellingham, Washington, made it illegal for a woman to take more than three steps backwards while dancing! |
