Answer:
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
What kind of room has no windows or doors?
I can move even when you are still. I can be one or many.
I have two hands but cannot clap
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?