Uhh, there's over 100 genders in the world.

42, The Almighty Answer to the Meaning of Life, the Universe, and Everything. It was calculated by the computer Deep Thought for seven million years and when asked to build a better computer to discover the Question to the Life, the Universe, and Everything, it built the Earth. Before the Earth could tell the Question however, it was destroyed by the Vogons to make room for an interstellar highway bypass. For more information, see The Hitchiker's Guide to the Galaxy.