Answer:
They are two brothers. However much they run, they do not reach each other.
Which is the oldest tree?
It belongs to you, but other people use it more than you do. What is it?
It carries paper of the most important sort but also plastic, I'm glad to report. What is it?
What goes up and down without moving?
Why was the cook arrested?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?