Answer:
I am round as an apple, deep as a cup. All the King's horses can't pull me up. What am I?
I always have to work with something in my eye. What am I?
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
Everyone in the world needs me. They generously give me but never take me. What am I?
I am always in front of you, but you will never see me. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?