1. Your best friend is being held hostage in a nuclear weapon base by a fanatical power nut. Just by pressing a switch he can set off enough bombs to blast the earth to bits. The base has a self-destruct option that you are in charge of.
Would you give the go-ahead to destroy the base, or risk the whole planet?
2. A spin on the classic question. Your boyfriend/girlfriend and mother both fell into a river. The current's strong - and suddenly they reach a fork in the water. Your mom is diverted to the left fork - your girl/boy the right. Now both of them can't swim, and the rapids are dangerous. Who would you go after?