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

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How many ring are there on the olympic flag?

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What is known as the "Droste Effect"?

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Who played the role of Seth Brundle in the 1986 film "The Fly"?

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What military alliance did the US join in 1949?

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"From a Distance" was a hit in the early 1990s for which singer?