Answer:
How many people are dead in a standard grave yard?
Nothing specific, but more than a few. This many clustered, together will do.
He's small but he can climb a tower.
The eight of us go forth not back to protect our king from a foe's attack. What are we?
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.