Answer:
What tree that definitely grows does not have a shadow and does not grow fruit?
What begins and has no end? What is the ending of all that begins?
Lighter than what I am made of, More of me is hidden Than is seen.
Who spends the day at the window, goes to the table for meals. And hides at night?
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 is always coming but never arrives?