Answer:
What common English verb becomes its own past tense by rearranging its letters?
You seek it out, when your hunger is ripe. It sits on four legs, and smokes a pipe.
What flies forever, Rests never?
What is it which builds things up? Lays mountains low? Dries up lakes, and makes things grow? Cares not a whim about your passing? And is like few other things, because it is everlasting?
Break it and it is better, immediately set and harder to break again
It weighs next to nothing but no one can hold it for long. What is it?