Why?

Typing "why" into my browser's Google search window currently yields the following suggestions:

why do men have nipples
why are black people so loud
why is the sky blue
why can't i own a canadian
why is my poop green
why did i get married too
why do dogs eat poop
why are people posting colors on facebook
why do cats purr
why did the chicken cross the road

Obviously these are all questions that need answers, so once I finished clutching my head and going "What!?!?" I thought I would employ my superior knowledge and resolve these matters once and for all.
( All shall be revealed )

If anyone has any further insights into these burning questions, then the world demands that you post them. Thank you.