Answer:
What building has the most stories?
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.
What is the difference between a poorly dressed man on a bike, and a well-dressed man on a unicycle?
I drift forever with the current and flows to your everyday life. I make living easy but I am good at killing people too.
What kind of table can you eat?
Give it food and it will live, give it water and it will die.