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65% knows the answer to this question: "Who sang the famous song "I Just Can't Help Believin'" (1972) "

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74% knows the answer to this question: "Who is one of the 12 founding member countries of NATO? "

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42% knows the answer to this question: "What is the central ceremony and most important ritual of the Great Plains Indians? "

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46% knows the answer to this question: "Who sang the famous song "Haben Wir Gelacht" (1990)? "

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81% knows the answer to this question: "Who sang the famous song "Let Me Entertain You" (1998)? "

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