* Some are Rational, but infinitely more are Irrational.
* The Real ones might be Proper or Improper, but only the Imaginary ones are ever Pure.
* Some are Natural, the rest are Negative, or just not there.
* Some are Prime, but those are hard to find.
* Every other one is just plain Odd.
Many of the jokes are contributions from our users. If you find anything offensive and against our policy please report it here with a link to the page. We will do everything to make this an enjoyable platform for everyone.