Answer:
I start new then become old. Start clean but be one dirty. I usually start big then become little.
What can you catch but never throw?
I am free the first time and the second time, but the third time is going to cost you money. What am I?
u always follow me but I am rarely seen
I am a type of animal that hang out in the mist
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?