My college has a puzzle every week that students can try to answer and win $10. It's a social science college, so I don't know if they assume we're dumb and can't do logic or if this is really supposed to be a puzzle.
If a man walks due south for 4km, and then due north for 3km, what is the maximum distance he can be from the point where he started?
The obvious answer would be 1km, but that's not really a puzzle, is it? Unless they think we're that dumb. So I was trying to think of other answers. What throws me off is that a few of my friends were talking to the secretary about it, explaining that
someone could be near the South Pole, walking south, once he reaches the South Pole and continues, he would be going North, so the answer could be 7km.
But she implicitly said it was not it? So... What answers can you folks come up with?
Edit: Thanks folks, I guess the answer mentioned has to be the right one, even if they hadn't thought of it, they have to accept it