101 Things You Need To Know. . . And Some You Don't!

Discover 101 of the most fascinating, most disgusting, and most unbelievable facts.  Make your friends jealous with your increased knowledge and amaze people with your ability to answer almost impossible questions!
  
Why is the sky blue?
 
How do birds stand on electric wires without being electrocuted?
 
Could I spontaneously combust at any moment?
 
Warning: increased braininess may be only temporary.