Answer:
I have a head tail but no arms and legs.
The more you have me, the less you see. Shine a light on me and I flee. What am I?
In Paris but not in France the thinnest of its siblings.
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. What am I?
You use me between your head and your toes the more I work the thinner I grow.
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?