Answer:
You can catch me but cannot throw me. What am I?
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
I have an eye but I cannot see. What am I?
I am the thing that is used to make your weight. What am I?
I make billions of dollars selling windows. Who am I?
What never gets any wetter no matter how hard it rains?