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.
I see what you see feel what you feel and hear what you hear. I know all of your moves before you make them. I even know the moves you didn't make.
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
What color can you eat?
The more you have of it the less you see. What is it?
Give it food and it will live, give it water and it will die.