These types of questions are favorites amongst my friends at the bar. However, you always get the 'principled' person who makes sure everyone knows they are so fantastically enlightened that they would never do any of these for any amount of money. Its a buzz kill, and a lie.
Let's take this one for instance; there has to be some limit for nearly everyone right?
"Would you do it for 100 Trillion dollars, and made King of earth?" "...Nope...". BS. People back themselves into a corner and think lying about money having value to them makes them superior somehow. I agree with others who pointed out, people would change their tune if cash was in front of them.
Agreed, love these topics over beers.
I had a friend of mine who would also use this line of reasoning with girls.
Dude: Hey, chick, could I pay you to have sex with me?
Girl: lol, no, i'm not a whore
Dude: Well, ok, let's just say I was a lotto winner and stacked up a million in front of you, would you have secks with me then?
Girl: well, i guess for that much, I would
Dude: OK, so we've established you'll have secks for money, from here it's just a matter of negotiating the price, no?
Didn't really work well for him, but I always thought it was hilarious.