Answer:
I am owned by the poor the rich does not need me. If you eat me you will die!
What happens once in June twice in August and never in May?
I am lighter than the material I am made of. You see parts of me but more of me is hidden underneath.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
What can one catch that is not thrown?
Give it food and it will live, give it water and it will die.