Answer:
No matter how much rain gets on me, I won't get any wetter. What am I?
What goes through towns and over hills but never moves?
I only exist when you are here. Where you never were I can never be.
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
The more you add the less it weighs. What is it?
The answer I give is yes, but what I mean is no. What was the question?