Answer:
I can be swallowed But I can also swallow you.
I am a person who pretends to be someone else
I can be long or short. I can be grown or bought. I can be painted or left bare. My tip can be round or square. (one word)
The eight of us go forth not back to protect our king from a foe's attack. What are we?
After you go through a fall, I will take over. All life will stall, or at least grow slower. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.