Answer:
What is the thing that stays the same size, but the more it's used the more it decreases?
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find.
I always follow my brother but you cannot see me, only him. You cannot hear him but you can hear me. What are we?
A harvest sown and reaped on the same day in an unplowed field. Which increases without growing, remains whole though it is eaten within and without. Is useless and yet the staple of nations.
In Paris but not in France, the thinnest of its siblings.
What do angels sing in the shower?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?