Math fake proofs

http://math.stackexchange.com/questions/37327/infinity-1-paradox
http://mathoverflow.net/questions/94742/examples-of-interesting-false-proofs
http://mathforum.org/dr.math/faq/faq.false.proof.html
http://math.stackexchange.com/questions/348198/best-fake-proofs-a-m-se-april-fools-day-collection
http://jcdverha.home.xs4all.nl/scijokes/1_1.html#subindex
http://www.math.toronto.edu/mathnet/falseProofs/