Answer:
The eight of us go forth not back to protect our king from a foes attack.
What time starts and stops with an “n”?
You use it between your head and your toes, the more it works the thinner it grows. What is it?
Even if you throw it away, it still comes back.
What goes up and down the stairs without moving?
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.