Answer:
This thing all things devours: Birds, beasts, trees, flowers; Gnaws iron, bites steel; Grinds hard stones to meal; Slays king, ruins town, And beats high mountains down.
What is put on a table, cut, but never eaten?
Who eats a lot of iron without getting sick?
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.
What relies on columns but isn't a house, and asks for help but can't speak itself?
I have two eyes in the front and a lot of eyes on my tail