Answer:
I belong to everyone. Sometimes make you happy, sometimes make you sad. I will never end until the day you do. What am I?
What is harder to catch the faster you run?
The more you take the more you leave behind. What are they?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I have a mouth on my head and eat everything.
The answer I give is yes, but what I mean is no. What was the question?