Answer:
The faster you run the harder it is to catch me
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
What has four wheels and flies?
I'm white and I'm used for cutting and grinding. When I'm damaged people usually remove me. What am I?
I can be hairy and itchy all over. I hang on a stick. I can be the scariest thing you have ever seen. I stand in the middle of nowhere.
No matter how little or how much you use me, you change me every month.