Answer:
I shrink smaller every time I take a bath. What am I?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
I help engines spin and pants stay up. What am I?
You went into the woods and got me. You sat down to seek me. You brought me home because you couldn't find me.
I fill a room but take no space.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.