Answer:
rub me and a genie might appear
What is easy to get into but hard to get out of?
I am always in front of you, but you will never see me. What am I?
I'm a kind of cup that doesn't hold water, but makes a lot of noise repeatedly. What am I?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?