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

Which river is known as the Yellow River in China?

Which country is known as the Land of Midnight Sun?

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

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

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

What is the capital city of Mexico?

Which canal connects the Atlantic Ocean to the Pacific Ocean?

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

Which city is the capital of South Korea?

Which country has the most official languages in the world?