Answer:
I am a box that holds keys without locks, yet they can unlock your soul.
Break it and it is better, immediately set and harder to break again.
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-Βlegged am I. Name me and see me at home in the sky.
You can see nothing else, When you look in my face, I will look you in the eye, And I will never lie.
What has a big mouth, yet never speaks?
Why is the letter B always cool?