Answer:
I run around the city, but I never move.
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
They can be harbored, but few hold water. You can nurse them, but only by holding them against someone else. You can carry them, but not with your arms. You can bury them, but not in the earth.
What is it that makes tears without sorrow and takes its journey to heaven?
What is as big as you are and yet does not weight anything?
Said to have fifty shades
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?