What US state is the source of the Arkansas, Platte, and Rio Grande rivers?

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What does the prefix "pseudo" mean?

Which bird is the national bird of Denmark?

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Cyanide is often said to have the bitter aroma of what?

What year did J. R. R. Tolkien publish "The Hobbit"?

Edward Jenner developed an effective vaccine for which disease?

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What percent of jellyfish is water?

Which James Bond actor also appeared in the movie "Lara Croft: Tomb Raider"?

What former "Little House on the Prairie" star served two consecutive terms as president of the Screen Actors Guild?

In 1935, what American celebrity, tired of years of hounding by the press, moved his entire family to England?

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"Photo Journal" was a weekly newspaper written and sold in which country until 1981?

What duo lost their Grammy for Best New Artist in the early 1990's?