Answer:
What is put on a table, cut, but never eaten?
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.
It cannot be seen, cannot be felt, Cannot be heard, cannot be smelt. It lies behind stars and under hills And empty holes it fills. It comes first and follows after, Ends life, kills laughter.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
What comes once in a minute, twice in a moment, but never in a thousand years?
What never gets any wetter no matter how hard it rains?