For each letter of the alphabet, find the country, subdivision (state,province,etc), city, island, or continent starting with that letter having the largest population.
For this quiz, North and South America are considered one continent and it begins with the letter A.
Thanks for the input. The wikipedia sites I used have some outdated info. Also figures for different entities were from different years making comparisons difficult. The updated figure for Odisha is still higher that the Oceania one. If they get closer I'll accept either as I do for letter T.