15 biggest cities in the U.S. that start with the letter D

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

When you guess a country, all the countries it borders will also be completed. Can you fill in the world map in just 90 seconds?

Click on the names of the languages that actually exist without clicking any of the ones that don't.

On each row, there is one song that was released in the 2010s and two songs that weren't. Guess the song from the 2010s.