Answer:
What gets bigger when more is taken away?
I need to be taken before you can have me. What am I?
What flies without wings?
I can be winding and I can be straight. I can be smooth and I can be rough. Sometimes both. I start out black but fade to brown. My favorite colors are yellow and white and I love stripes and dashed lines.
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
No matter how little or how much you use me, you change me every month.