Answer:
I make billions of dollars selling Windows. Who am I?
Come up and we go, Go down and we stay.
When it's dirty this should never be aired in public.
You can do this with your friends. You can do this with your nose. But don't do it with your friend's nose!
I am the enemy of all that is good and right. Five letters--that is the length of my name. Remove the first and evil I remain
Before Google, we actually had to physically look things up in this building full of knowledge.