Answer:
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
Forward I’m heavy, but backwards I’m not.
What comes once in a minute, twice in a moment, but never in a thousand years?
What is eaten but not grown and was born in water but will disappear if soaked?
Brown I am and much admired; many horses have I tried; tire a horse and worry a man; tell me this riddle if you can.
What sphinxes employ and players enjoy.