Please check the globe. Draw a line from the centre of the pole along the longitude towards south then along the latitude towards west(this will be curved up and not straight as the earth is round, not flat), and then along the longitude towards north, it will form a traingle.
'North West' direction is not applicable to North Pole. This is because the longitudes converge at the North Pole. So, essentially, ALL the longitudes start at the same point. So, when you travel equal distances on any two longitudes, they lead u to the same place.
Hope this helped.
Mr. Peer, request you to kindly let me know if I am wrong.