Answer:
How many bricks does it take to complete a building made of brick?
They are two brothers. However much they run, they do not reach each other.
You'll have to consult an optometrist if you want to improve this.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What is it that leaps and runs and yet, has no feet?
I am a rock group with four members. All dead one was assassinated.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?