What is the lowest layer of the Earth's atmosphere called?

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How many tournaments make up a Grand Slam in golf?

'Tennis bracelets" are so named because of a 1987 incident involving what athlete?

Who painted "Water Lilies"?

Who wrote the 1952 novel "Giant"?

What publication uses the motto "America's Finest News Source"?

How many of the seven dwarfs have beards?

What is Chicago's main international airport?

In which US state does the Rio Grande river begin?

Which river runs through Paris?

What city is home to the Rose Tower?

What former Broadway Annie and future Emmy winner was the start of TV's "Square Pegs"?

Sean Penn won his first Academy Award for his role in which movie?

What date did the United Kingdom European Union membership referendum took place on?

Reed Richards was a member of which superhero team?

How was Mark Feld better known in the 1970s?