Answer:
Bury deep, Pile on stones, My mind will always Dig up them bones
Inside a great blue castle lives a shy young maid. She blushes in the morning and comes not out at night.
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.
My prefix is food. My suffix is rude. My infix comes in rounds. I keep you off the ground. What Am I?
What relies on columns but isn't a house, and asks for help but can't speak itself?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.