Answer:
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
A morbidly-named body of water
It holds no blessings in disguise. Its rhymes are aimed at your demise, it's cast only to ruin, Whatever you are doin'.
What tastes better than it smells?
What can be seen but never found that only hides in the unwound?
It rows quickly with four oars but never comes out from under his own roof. What is it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?