What former country was Martina Navratilova born in?

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Notch, peak, and shank are different types of what?

It is sometimes considered a fashion faux pas to wear white after what holiday?

In 2003, who became the third Englishman ever to sign with Spain's Real Madrid?

At which sport was Fred Perry crowned world champion in 1929?

What organization in the US was co-founded by Ballington Booth?

What figure in Greek mythology was tricked into holding the sky?

What US city is nicknamed the "Crossroads of the West"?

What is the Paris Gare Du Nord?

What word denotes the energy an object has because it is in motion?

What is measured using a Richter scale?

Karl Landsteiner won a Nobel prize in 1930 for which medical discovery?

Wallace Carothers is known as the inventor of what?

Diane Belmont was the stage name of which famous actress?

On what sea did the "Battle of Jutland" take place?

The Gotthard Base Tunnel, which opened on June 1, 2016, is located in which country?