A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.
The mules is perfectly normal. So how come this be true ?
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?