Answer:
What looks back but cannot see?
It's the only vegetable or fruit that is never sold frozen, canned, processed, cooked, or in any other form but fresh
What is it that has four legs, one head, and a foot?
So cold, damp and dark this place. To stay you would refrain, yet those who occupy this place do never complain.
What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?
It produces a flower but it is not its fruitΝΎ it produces branches which are its fruit.