Answer:
I am free for the taking. Through all of your life, though given but once at birth. I am less than nothing in weight, but will fell the strongest of you if held.
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?
If Mississippi should lend Missouri her New Jersey, what would Delaware?
What has a single eye but cannot see?
What turns everything around but does not move?
What is so fragile that saying its name breaks it?