49% knows the answer to this question: "Which Australian city is most famous for its opera house and harbor bridge? "

And do you know the answer to this one? "He'll be back ... in a big car. In 1992, what California Republican bought the first commercially available Hummer, and eventually started converting his Hummer fleet to green fuels?"

77% knows the answer to this question: "Miami is a city located in which State? "

And do you know the answer to this one? "What nickname for New York City was popularized in the 1920s columns by John J FitzGerald?"

38% knows the answer to this question: "Who was tried for the murder of Nicole Brown and Ronald Goldman in 1994? "

And do you know the answer to this one? "How long is a decade?"

73% knows the answer to this question: "President Harry Truman ordered the atomic bombing of which two Japanese cities? "

And do you know the answer to this one? "What is the missing word: .... comes but once a year"

82% knows the answer to this question: "What was the title of the 1961 #1 hit by Johnny Tillotson? "

And do you know the answer to this one? "Vocal quartet The Four Tops came from which city?"

79% knows the answer to this question: "Which state is bigger than Texas? "

And do you know the answer to this one? "Which of these is a real state?"

50% knows the answer to this question: "The 26th Amendment to the Constitution in 1971 lowered voting age from 21 to what? "

And do you know the answer to this one? "In what state was John F Kennedy assassinated?"

47% knows the answer to this question: "Simon & Garfunkel had which hit single in 1968? "

And do you know the answer to this one? "A coronary care unit looks after people suffering difficulties with which organ?"

32% knows the answer to this question: "Which of these is the longest river in the world? "

And do you know the answer to this one? "What is a state of poor nourishment?"

48% knows the answer to this question: "What is one of ten equal parts? "

And do you know the answer to this one? "Which of these tiny independent states lies within Rome?"

58% knows the answer to this question: "What is 50% of 120? "

And do you know the answer to this one? "What is the capital of Finland?"

33% knows the answer to this question: "What process uses heat to release carbon from starch and sugar, thereby changing the color and texture of bread? "

And do you know the answer to this one? "Which of these countries has the smallest population?"