Answer:
Three little letters, a paradox to some. The worse that it is, the better it becomes.
What does everyone know how to open but not how to close?
I am a fire's best friend. When fat, my body fills with wind. When pushed to thin, through my nose I blow. Then you can watch the embers glow.
What tastes better than it smells?
Though blind as well, can lead the blind well.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?