Which country has the world's largest proven natural gas reserves?

Which country is known as the Roof of the World due to its high altitude plateau?

Which river is known as the Yellow River in China?

What is the capital city of Mexico?

Which is the world's highest uninterrupted waterfall located in Venezuela?

Which canal connects the Atlantic Ocean to the Pacific Ocean?

Which country is known as the Land of Midnight Sun?

Which international waterway connects the Mediterranean Sea to the Red Sea?

Which is the deepest lake in the world located in Russia?

Which city is the capital of South Korea?

Which country has the most official languages in the world?