Answer:
Find an English word that uses all of the following letters: PNLLEEEESSSSS
A house with two occupants, sometimes one, rarely three. Break the walls, eat the boarders, then throw away me.
You eat something you neither plant nor plow. It is the son of water, but if water touches it, it dies.
A warrior amongst the flowers, he bears a thrusting sword. He uses it whenever he must, to defend his golden hoard.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
I am black within and red without; with four corners round about. What am I?