Answer:
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you. What am I?
Iām white; perfect for cutting & grinding. For most animals I am a useful tool.
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
First I may be your servant's name. Then your desires I may proclaim. When your mortal life is over, I hold all your wealth within my power. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.