Answer:
It's the only vegetable or fruit that is never sold frozen, canned, processed, cooked, or in any other form but fresh
All about the house, with his lady he dances, yet he always works, and never romances.
What runs around all day. Then lies under the bed. With its tongue hanging out?
What asks but never answers?
What flares up and does a lot of good, and when it dies is just a piece of wood?
You use it between your head and your toes, the more it works the thinner it grows.