Answer:
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. The wind is my lover, one-legged am I. Name me and see me at home in the sky.
A word I know, six letters it contains. Subtract just one and twelve remains.
The more you take, the more you leave behind.
A hole leading in, a hole leading out, we connect to a cavern that is slimy all throughout. What are we?
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?
What is so fragile that saying its name breaks it?