Answer:
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
What five-letter word becomes shorter when you add two more letters?
What is red and nailed to a wall?
Lighter than what I am made of, More of me is hidden Than is seen.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?