Answer:
What is black when it is clean and white when it is dirty?
Taking this from a baby is said to be quite easy.
It's real until the trick is revealed.
What gets whiter the dirtier that it gets?
They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?