If you have it you can't share it and if you share it you can't have it?

Answer 1

nothing

Virginity: If you have your virginity, you can't share it, if you share your virginity, you no longer have it

Nothing is the correct answer. If you have nothing, it is impossible to share anything. And if you share nothing, then you must, logically, have *something* to share, and therefore cannot have nothing. Nothing allows both halves of the riddle to be true at the same time.

The virginity answer fails to meet the required logic. In the first part, it is claimed that you cannot share your virginity if you have it. But then the second part explicitly suggests that you CAN share it, which instantly contradicts the first part.