Semi prime numbers

Can you name the 15 most populous South American cities with the help of a map?

20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?

Drag the flag onto the correct country. Careful, though! One wrong move and the game ends.

Click the flags of countries that lie entirely on islands. But don't click any mainland countries or your experience will end abruptly.