Answer:
What can be forever wound up but never annoyed?
who do you think you know but sometimes you don't
What is put on a table, cut, but never eaten?
Look into my face and I'm everybody. Scratch my back and I'm nobody.
I appear in the morning. But am always there. You can never see me. Though I am everywhere. By night I am gone, though I sometimes never was. Nothing can defeat me. But I am easily gone.
What sphinxes employ and players enjoy.