Answer:
What goes through cities and fields but never moves?
I am an odd number. Take away a letter and I become even. What number am I?
I am the kind of ant that's good at math.
I can never be stolen from you. I am owned by everyone. Some have more some have less.
I have an eye but I cannot see. What am I?
No matter how little or how much you use me, you change me every month.