Answer:
Although my cow is dead, I still beat her. What a racket she makes!
Different lights do make me strange, thus into different sizes I will change.
There is someone, and there is always another, for without the other, there wouldn't be one
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.
I can travel from there to here by disappearing, and here to there by reappearing.
When is it bad luck to see a black cat?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?