Answer:
He has married many women, but has never been married. Who is he?
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.
Always wax, yet always wane: I melt, succumbed to the flame. Lighting darkness, with fate unblest, I soon devolve to shapeless mess.
What looks back but cannot see?
What can be heard and caught but never seen?
Often cooked as fillet, this meat comes from an animal that swims underwater.