No matter what number you start with it will add up to 9 so that when you subtract 5 you get 4 which equals D. So most people will pick Denmark as there isnt many countires beggining with D. Then you will end up with K and most people will think of a kangaroo asagain not many animals beging with K. Then you end up with O which most people will think of an Orange as again no many fruits if any begin with O