Answer:
I am partially baked. I am not completely lit. I am a portion of the moon. I am lesser than full wit. I am a divider of the hour. I am not a total lie. I am a sibling through one parent.
I welcome the day with a show of light. I steathily came here in the night. I bathe the earthy stuff at dawn but by noon, I'm gone. What am I?
I am a lunch money thief
I cannot be burned in fire or drowned in water
The more you take of me the more you leave behind.
I have a ring but no fingers. I used to stay still all the time but nowadays I follow you around.