Answer:
Kills the bad ones and the sad ones. Tightens to fit, so one size fits.
What word starts with 'E', ends with 'E', but only has one letter? It is not the letter 'E'.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
A great mysterious place that the bold have been known to journey into.
When is it bad luck to see a black cat?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?