Answer:
I call the trees my home, yet I never go inside, and if I ever fall off the tree I will be surely be dead.
Soldiers fight it but never changes.
In spring I look gay, Covered in a green array, The warmer it gets the more clothing I wear, As the cold grows, I throw away my clothes.
What is not a ball but yet a sphere, and holds all lands and people year after year?
What bank has no money?
What is always coming but never arrives?