Answer:
What can go up but never come down?
Sometimes you feel it weigh a ton. Yet it is nothing, but somehow still there. Makes you uncomfortable around anyone, But speak its name and it's gone.
It can be cracked, It can be made, It can be told, it can be played. What is it?
What is the center of gravity?
What has a neck and no head, two arms but no hands?
What never gets any wetter no matter how hard it rains?