All OLL algorithms for 2x2 from memory

Do you know where all 50 states are located? Fill in the map of the U.S. by correctly guessing each highlighted state.

Fill in the map by guessing languages. When you guess a language, all the countries that use it as an official language will be filled in.

Guess the world's twenty most-traded currencies, and the countries or special regions that issue them.

Can you name the 26 nations that have at least one urban area with 10,000,000 or more inhabitants? The '#' column is the number of megacities.