Answer:
What can be seen but never found that only hides in the unwound?
The French word for 'fun size' in women's clothing.
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. I have greatest power when given away, yet lust for me keeps me locked away.
In this place, people lie, people cry, and people ask why. In this place, people sleep, people weep, and people's solitude, they keep. What is it?
I have two eyes in the front and a lot of eyes on my tail