Answer:
What has teeth but no mouth?
What is more useful when it is broken?
What goes with a car, comes with a car, is no use to a car, but the car can't move without it?
Have branches, Sometimes a few and other times hundreds or more but I have no fruit, trunk or leaves. What am I?
Why couldn’t you hear the pterodactyl go to the bathroom?
I’m hard as a rock and as light as a feather. I’m passed on to one another. Poor people need me and rich people have me.