Overall a great quiz, but Vatican City / Holy See is the least populous country, not Nauru. Also, you might want to change the "shipped with Estonia" question, as it doesn't really relate to geography. Make sure to capitalize the names of countries, otherwise no complaints.
Chaddius, you know, when i started making quizzes, you were commenting on them, only you, which i really appreciate, theres always a special place in my heart for you, thanks for doing my quizzes, and also i have alot more so why dont you continue checking out my alt accounts quizzes and my old ones just incase you missed them