Answer:
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
Itβs red, blue, violet and green. No one can reach it, not even the queen. What is it?
Flat as a leaf round as a ring. I have two eyes but can't see a thing.
I have been the beginning of ideas for all time yet I am just one simple small object the things that you can use me for can be frustrating and also I can be pretty. I have some of the most valuable thing in the world on me yet almost everyone owns me.
I flow from the Homerβs mouth when he sees doughnuts.
No matter how little or how much you use me, you change me every month.