Answer:
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen.
The land was white the seed was black it'll take a good scholar to riddle me that. What is it?
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
Talks like this, a green wise man does. Guess my clue, you will.
Find an English word that uses all of the following letters: PNLLEEEESSSSS
Both old people and owls are said to be possessing this trait