Answer:
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
I am bought by the yard but worn by the foot
There are four of us but it seems like everyone loves spades the most.
You cannot keep me until you have given me. What am I?
I am full of holes but still hold water. What am I?
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic