Answer:
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
What gets broken without being held?
Marking mortal privation when firmly in place. An enduring summation inscribed in my face.
I am filled with garb the price is free. Just return what you don't need.
Ten men's strength, ten men's length. Ten men can't break me, yet a young boy walks off with me. What am I?
What did the grape do when he got stepped on?