Answer:
I'm not a bird, but I can fly through the sky. I'm not a river, but I'm full of water. What am I?
I live off of a busy street. If you want, you can stay for an hour or two. But if you don't pay rent, I'll tell on you. What am I?
What can you catch but not throw?
Four leaves I have.
I have numbers on my face but can't find 13 any place. What am I?
No matter how little or how much you use me, you change me every month.