What is the most common element in air?

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Who built the world's first free-standing geodesic dome in 1949?

Gilbert Stuart is best known for his work in what genre of painting?

What species are mingled to produce a Chimera?

What South American country is home to more species of primates, amphibians, and plants than any other in the world?

What river defines the southern border of Oklahoma?

Which New England state doesn't border the Atlantic Ocean?

What is gymnophobia the fear of?

What metal was Danish astronomer Tycho Brahe's nose made of?

What mathematical symbol has the proper name of a Lemniscate?

In which film did Paul Newman play a crime boss named John Rooney?

Who played Renton in the movie Trainspotting?

Who composed the jazz classic "I Got Rhythm"?

'Three's Company" is an American remake of which British sitcom?

What were American patriots protesting when they dumped tea into Boston Harbor?

In what year did Pierre Trudeau become the 15th Prime Minister of Canada?