Answer:
Sends paper without using the post office.
The King of Pop's stellar dance move
Even if you throw it away, it still comes back.
The day is their night and the night is their day, when I shout and they shout back I run away.
I am a piece of paper that takes most people 3 or 4 years to get. What am I?
I always have to work with something in my eye. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?