The "two words" country is way too broad, as there are many countries fitting the category, same with z, I think it should include both Zambia and Zimbabwe
It looks like island countries count for "An island that starts with T" regardless of whether the country has only one island. The absence of Taiwan and Trinidad and Tobago from this quiz baffles me.
Did you mean to say the Scandinavian Peninsula? Scandinavia is Denmark, Norway, and Sweden. The Nordic Countries are Scandinavia + Finland & Iceland, although the Baltic country Estonia has constantly wanted to be considered Nordic.
I'm not gonna spoil them but...
countries in africa, Burundi and Burkina Faso should also count. And "east of china" is also not really specific.