Answer:
It's like food but water kills it. What is it?
He has married many women but has never married.
What types of words are these: madam, civic, eye, level?
When the son of the water returns to the parent, it dies. What is it?
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
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.