What vitamin is milk fortified with in the US to combat rickets?

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Boxer John L. Sullivan is often recognized as the first what?

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What year did Volkswagen introduce the Golf R32 model?

Who wrote a book about John Harrison, entitled "Longitude"?

Who won a Pulitzer Prize for her novel "So Big"?

What country lies directly south of Detroit?

What part of the human body experiences different growth rates called anagen, catagen, and telogen?

Who invented the lightning rod, though he refused to patent it?

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How many years was Robinson Crusoe marooned on his desert island?

What TV title character lived at 485 Mapleton Drive, Mayfield?

In what year was the Sydney Opera House designated as a UNESCO World Heritage Site?

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What continent is Sao Tome and Principe located in?