Answer:
I have married many women but have never been married. What am I?
When it comes to me, you go on red and stops on green. What am I?
What can you hold in your right hand but not in your left hand?
What always ends everything?
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
No matter how little or how much you use me, you change me every month.