Answer:
What hangs others yet can unintentionally hang itself?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
What turns from red to black as soon as it touches water?
If I have it, I don't share it. If I share it, I don't have it. What is it?
Different lights do make me strange, thus into different sizes I will change.
When is it bad luck to see a black cat?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?