Answer:
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?
I am the kind of ant that's good at math.
When I get closer my tail grows longer but when I go away my tail leads the way.
I sit high glowing and watch the world go by. Without me everything would seem dull and dangerous. What am I?
I shoot but never kills
What did the piece of wood say when he saw the screwdriver and screws approaching?