Answer:
What dentists battle on a daily basis
MT_TF_S What are the missing letters? Why?
A defendant will go free if a reasonable amount of this exists.
You feel this sensation when you are dehydrated.
If you have me, you want to tell me. If you tell me, you don't have me.
What is always coming but never arrives?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?