What year did the TV show "Gunsmoke" end its 20 season run?

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Facebook was originally developed as a social tool for students at which university?

By US law, exit signs in buildings must be one of what two colors?

What color are the stars on the US national flag?

In Slovenia, Saint Valentine is considered the saint of good health and the patron of whom?

The star Polaris is more commonly known by what name?

On the pH scale, which number represents "Neutral?'

What is the study of insects called?

What land animal has the longest gestation period?

What famous actor was slated to play the alien in the 1987 film "Predator" but was replaced?

Other than boxing, what does Maggie Fitzgerald do for a living in "Million Dollar Baby"?

What European capital was first dubbed the City of Light in the 19th century?

Who was the 40th President of the United States?

Who is the founder of Carthage?

What medical facility was founded in Rochester, Minnesota, in the late 1800s?

Which British rock group released a 1990s album called "Parklife"?