Answer:
What is given but kept by the giver?
I tremble at each breath of air, and yet can heaviest burdens bear.
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 covers its face with its hands, speaks no language, yet most known what it's saying?
Where do you go in through one hole and come out through two holes at the same time?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?