With so much fake news floating around these days, it's difficult to know just who and what to believe. While Wikipedia is usually a reliable source of factual information, from time to time people hack Wiki and slip some alternative facts in there too. And since it's a free encyclopedia, created entirely by collaborators, it turns out that some of them have quite a knack for humor. From Charlie Sheen being half man, half cocaine to American Olympic swimmer Katie Ledecky being a humanoid…