Cities with the Worst Traffic

Name all 50 states in the USA. Easy, right?

Can you name all the countries that have ever been members of OPEC, the Organization of Petroleum Exporting Countries?

In 90 seconds, make every country disappear from the map by typing both its first 2 letters and its last 2 letters.

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