Elect: edse Yeah, what could possibly go wrong?

1. What is the moral choice, killing one man to save five, or allowing one man to live knowing it will result in the death of five others?
Killing one to save five. It does depend on the circumstances, but in a general case where one doesn't know anything else, the less dead the better.
2. A man’s wife is dying of a horrible disease, and a local doctor has a very expensive medication that will cure her. The man does not have the money, but without the medication his wife will die. He also knows that stealing the medication will result in his imprisonment, possibly for life. What course of action should he take?
As Ibn-Khaldun said, if she will have a "good" life after she's cured he may steal. (Also if the medicine is horribly overpriced)
3. Why should I let you all live?
We are no threat to you.