Elements With Only 4 Letters

Can you name the cities that are served by the world's 50 busiest airports?

Name the countries that have suffered more than 5,000 earthquake-related deaths in the 21st century.

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.

For each state, name one of the five most populous cities that is NOT either the capital or the largest city.