Answer:
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
I run up and down the stairs without moving
I look at you, you look at me. I raise my right, you raise your left. What am I?
I can be heard in a court or carried with you.
What happens once in June twice in August and never in May?
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic