Answer:
When I get closer my tail grows longer, but when I go away my tail leads the way.
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.
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 kind of table has no legs?
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?