Any International Institute of Social Studies and University must know that there are six zones of the earth. These are North Pole, temperate & tropics and south tropics, temperate and pole. This means that we must consider there are six zones of the globe. Let suppose these six zones are consists of the first six consecutive counting numbers. The first three counting numbers such as 1, 2 and 3 denote North Pole, temperate and tropics, when the next three numbers such as 4, 5 and 6 represent south tropics, temperate and pole respectively. Therefore, 1 denote north pole when 6 is south pole, 2 is north temperate, when 5 is south temperate and 3 is north tropics when 4 is south tropics.
It is interesting to know that the sum of the numbers of each opposite but similar zone is equal to the number of days of the week (7). 1+6=7 (poles), 2+5=7(Temperates) and 3+4=7(Tropics)