42% knows the answer to this question: "What is the capital of Brazil? "

And do you know the answer to this one? "Who developed the theory of relativity?"

63% knows the answer to this question: "What is the capital of Japan? "

And do you know the answer to this one? "Who discovered penicillin?"

49% knows the answer to this question: "What is the capital of France? "

And do you know the answer to this one? "Who invented the theory of evolution by natural selection?"

88% knows the answer to this question: "What is the capital of Spain? "

And do you know the answer to this one? "Who painted "The Last Supper"?"

80% knows the answer to this question: "What is the capital of Australia? "

And do you know the answer to this one? "Who discovered penicillin in 1928?"

90% knows the answer to this question: "Who was the leader of Germany during World War II? "

And do you know the answer to this one? "In which year did the U.S. land astronauts on the moon?"

65% knows the answer to this question: "Who was the first emperor of China? "

And do you know the answer to this one? "In which year did the American Civil War begin?"

61% knows the answer to this question: "Who was the first President of the United States? "

And do you know the answer to this one? "In which year did World War II end?"

73% knows the answer to this question: "Who sang "Wake Me Up Before You Go-Go" (1984)? "

And do you know the answer to this one? "Who sang "Billie Jean" (1983)?"

52% knows the answer to this question: "Who sang "Raindrops Keep Fallin’ on My Head" (1970)? "

And do you know the answer to this one? "Who sang "Me and Bobby McGee" (1971)?"

52% knows the answer to this question: "Who sang "Dancing Queen" (1976)? "

And do you know the answer to this one? "Who sang "We Are Family" (1979)?"

51% knows the answer to this question: "Who sang Let It Be (1970)? "

And do you know the answer to this one? "Who sang American Pie (1971)?"