Bobert,That's a nice problem, and a good example of "outside the box" thinking.
What I didn't like about the problem Amos initally cited, was that you the instructions said that you had to choose ONE person, yet the 'right' answer was to choose TWO.
Your V problem and the nine dot problem don't give any extra rules, you can do as you see fit. Amos's bus stop one did, and also made a lot of assumptions.
That's why I didn't like it much
Paul