Answer:
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.
What has a neck but no head?
In prison I'll be found. But I would never go to court Unless there's more than one
In Paris but not in France the thinnest of its siblings.
What is so fragile that saying its name breaks it?
If lightning strikes an orchestra who is the one most likely to get hit?