How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?
It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?