Answer:
No matter how much rain gets on me, I won't get any wetter. 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?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
I am rubber you can eat!
Cloud is my mother. Wind is my father. I come down but never go up. 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.