In each group, name any answer which matches the first category to reveal the second category, then name any answer which applies to both categories to reveal a third, and so on.
Nepal only has one "star" in my opinion. The secondary object represents the moon with 8 rays coming out of it, which doesn't take the shape of a star.
For flags which contain blue, why doesn't the United States flag count for the question which has a red stripe? It has a blue field and red and white stripes.
With these types of quizzes I usually get a country in mind and keep using it until a clue excludes it. In this case I chose Brazil for the first one and it worked all the way through. Since Libya lost its pure green flag, Brazil is always the first flag I think of with green on it.
Thanks :)
some reason I didn't think of mongolia