I live if you drop me off a building but I die if you put me in water. What am I?
I have 2 Ideas for an answer, my hope maybe one of them will be true:
A bird (meaning a regular bird, not a Seabird)-If you drop her out of a building she'll just fly, but if you put her in the water she'll probably die.
A house cat-He will survive the fall thanks to the cat righting reflex ,But he will not survive swimming for a long time because entering the water leads him to rapid exhaustion (especially if he is a spoiled house cat).