Answer:
I go up and down at the same time. Up towards to sky and down towards the ground
I am whole but incomplete. I have no eyes yet I see. You can see and see right through me. My largest part is one fourth of what I once was.
I hold two people together but touch only one. What am I?
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
I am higher than the king. What am I ?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.