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.
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
I am essential to life on earth! I am split into thirds. Two thirds are the same. One of the thirds is 8. The other two are 1 each.
You heard me before and then again. Afterward I die, until you call me again. What am I?
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?