Answer:
What is often returned, but never borrowed/
Green arrows grow out of my sides. I go from yellow to white. My babies fly in the wind. What am I?
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
It is worldwide, but once only a spider could weave one
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
What language does a billboard speak?