Answer:
I am the kind of a tree that is carried in your hand. What am I?
I have 24 keys but cannot open any locks. Sometimes loud, sometimes soft. What am I?
I am a box which holds keys but not locks. With the right combination, I may unlock your soul. What am I?
I go up and down at the same time. Up towards to sky and down towards the ground. What am I?
My head and tail both equal are my middle slender as a bee. Whether I stand on head or heel Is quite the same to you or me. But if my head should be cut off the matter's true though passing strange directly I to nothing change.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.