Which is the most spoken native language in the world?

Which country is known as the 'Land of a Thousand Lakes'?

The Chernobyl nuclear disaster occurred in which year?

The human liver primarily performs which function?

Which country is the birthplace of democracy?

Which country is the world's largest exporter of oil?

The Andes mountain range is located primarily in which continent?

The Rosetta Stone helped scholars decipher which ancient writing system?

Which vitamin deficiency causes scurvy?

Which is the largest desert in the world (including cold deserts)?

The International Date Line is located near which ocean?