Bosnia, the UAE, Bahrain, Belarus, Czech Republic, Philippines, Cuba, Algeria, Estonia, Ethiopia, Indonesia, Hungary, Guyana, Guatemala, Ghana, Iran, Jordan, Morocco, Latvia, Liberia, Kazakhstan, Macedonia, Nigeria, Qatar, Syria, Somalia, Holy See, and.... Nepal! Probably the most recognizable flag in the world just by it's odd shape. Much more recognizable than Trinidad or a few others you've featured.
So... there are still some good ones left. I'd mention Hong Kong and Macau and some other places that aren't technically countries but I think I recall seeing another quiz on the site about flags from states, territories, provinces and organizations etc, and I think HK and Macau were featured on that one.
+ i'm new here can somebody explain me how to put pictures in quiz
10 year old, Pretty Good I think