Answer:
I'm the source of all emotion but I'm caged in a white prison.
I lose my head in the morning and regain it back at night. What am I?
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 keys but no locks. I have space but no room. You can enter but canβt go outside. What am I?
I can only be played on a windy day. 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?