1) What is the capital of Russia?
2) What year was the Great Fire of London?
3) How many planets are in the Solar System?
4) Who was the first President of the United States?
5) What is the most common element in Earth's atmosphere?
6) What is the capital of the United States?
7) What is the world's largest ocean?
8) What is the longest river in the world?
9) How many colors are there in a rainbow?
10) How many continents are there?