Answer:
What is made of wood but can't be sawed?
What's a place you have left but didn't enter?
I love to dance and twist and prance. I shake my tail, as away I sail. Wingless I fly into the sky.
The more holes you cover the lower it goes.
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.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.