Answer:
I can fall off a building and live but in water I will die.
My days are numbered.
What invention lets you look right through a wall?
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
No matter how little or how much you use me, you change me every month.
When is it bad luck to see a black cat?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic