Answer:
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
As I walked along the path I saw something with four fingers and one thumb, but it was not flesh, fish, bone or fowl.
I'm full of holes, yet I'm full of water.
At the sound of me, one may dream or stamp their feet, At the sound of me, one may laugh or sometimes weep.
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.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?