What African country in which the entire population speaks the same language?

More Questions:

What is the plastic piece at the end of a shoelace called?

What is the fear of the color purple known as?

Who invented Marmite?

Candy Lightner was the founder of what organization?

Who is the author of the Discworld series?

Who wrote the novel "Tarzan of the Apes"?

Which US state is nicknamed the "Land of the Midnight Sun"?

What is the English translation of the area of Cuba called Bahia de Cochinos?

Which African coast is Mozambique located on?

Although it's referred to as a "sea', what body of water is actually the largest lake in the world?

What is the more common name for a car engine using the "Otto" cycle?

What is Elton John's real name?

Who voices the character of scientist and inventor Professor John I.Q. Nerdelbaum Frink Jr. on The Simpsons?

What actress was a regular on both "Dynasty" and "TJ Hooker" at the same time?

Who made the first wheelbarrow?