Question

How many points are there on earth so that if you go north,then west and then south and return at the same place.

Answer 1

Answer:

The less intuitive answer is that you can start a little over 1 mile north of the South Pole, and then your trip will be 1 mile straight, followed by a 1 mile loop (around, and centered on, the South Pole), followed by a 1 mile trek back north to where you started.