Answer:
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
Goes over all the hills and hollows. Bites hard, but never swallows.
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
Pregnant every time you see her, yet she never will give birth.
What did the piece of wood say when he saw the screwdriver and screws approaching?