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 same written forward backward and upside down.
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
I am an insect. Half of my name is another insect. I am similar to the name of a famous band. What am I?
I am as hard as metal, yet as flimsy as glass. I shine like a star, yet I am only a rock. What am I?
Born of earth, but with none of its strength. Molded by flame, but with none of its power. Shaped