Primus: sailing the sea of cheese

How many countries do you know? In this quiz, you've got 15:00 to name as many as you can. Go!

Name the 20 cities ranked as the world's top financial centers according to the Global Financial Centres Index.

There are 16 countries with a population of at least 100 million. Click them all without clicking any incorrect countries.

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