Answer:
I grow up while growing down
I am what one cannot keep, two cannot hold, and three cannot destroy. What am I?
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?
You hold my tail while I fish for you. What am I?
I have an eye but cannot see. I am fast but I have no limbs. What am I?
What never gets any wetter no matter how hard it rains?