Answer:
I run smoother than any rhyme I love to fall but cannot climb.
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
Everyone has me except for a few. You may not be able to identify me but I can always identify you. What am I?
I am a person who pretends to be someone else
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
I met a man on the London bridge, he tipped his hat and drew his name, in this riddle I told you his name. What is it?