Answer:
Cloud is my mother, wind is my father. What am I?
What gets bigger when more is taken away?
I am between earth and heaven. What am I?
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?