Answer:
What always ends everything?
What goes up a chimney down but can't go down a chimney up?
I am quick when I'm thin. I am slow when I'm fat. Wind is my worst nightmare. What am I?
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
I am an instrument capable of making numerous sounds but cannot be touched or seen. What am I?
What never gets any wetter no matter how hard it rains?