Answer:
What gets sharper the more you use it?
What do people spend a lot of money on every year, but never want to use?
I am the same written forward backward and upside down.
Kings and queens may cling to power and the jesters may have their call. I am the most common but I can rule them all. What am I?
I am always hungry I must always be fed. The finger I lick will soon turn red.
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