Which river helped create the Grand Canyon?

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Which floor of the Guinness Storehouse houses the Gravity Bar, where tourists can drink a pint of Guinness?

What is the longest running US game show?

How many days are there in a leap year?

What popular comic book character's nickname is "Man of Steel"?

Where did the Yellow Brick Road lead to?

What is the name of Dennis the Menace's dog in the UK version of the comic strip?

Who killed Macbeth?

Who is Becky Thatcher's boyfriend?

What is the capital city of Iran?

Where were the first Academy Awards held at?

What year did Montenegro declare its independence from Serbia and Montenegro?

What religious leader, living in France while exiled, returned to his home country in 1979?

What is the first known form of written communication, found in the Mesopotamian Valley?

What film did John Wayne win his only Oscar for?

Vanilla Ice's song, "Ice Ice Baby" samples the bassline from which song?