What metal impurity makes rubies red and emeralds green?

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Which country were the 1908 Summer Olympic Games held in?

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In which country would you find the major port town Fremantle?

What do goldfish lose if kept in dimly lit or running water?

What did Leo Hendrik Baekeland call the plastic he invented in 1907?

Which of the four bases of DNA isn't found in RNA?

Which astronomer gave his name to a telescope launched into space in 1990?

What does Fauna refer to?

Where does Grace work in the TV show "Grace Under Fire"?

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In The Simpsons, what is Reverend Lovejoy's first name?

What was the nickname of WWI figure Manfred von Richtofen?

Which amendment to the US Constitution deals with self-incrimination?

The "Ugu Youth" radio station is broadcast in which African country?