53% knows the answer to this question: "What tide occurs on the new and full phases of the moon? "

And do you know the answer to this one? "Aristarchus of Samos was the first person known to advance what crazy, crazy idea, usually credited to Copernicus?"

62% knows the answer to this question: "Which city is the capital of Tunisia? "

And do you know the answer to this one? "Which of London's boroughs includes the Houses of Parliament, #10 Downing Street and Buckingham Palace?"

43% knows the answer to this question: "Jerry Lee Lewis caused a scandal by marrying whom? "

And do you know the answer to this one? "In what war did Rosie the Riveter first remind American woman that "we can do it"?"

45% knows the answer to this question: "Who sang the famous song "I Heard It Through The Grapevine" (1969) "

And do you know the answer to this one? "Who sang the famous song "Fernando" (1975)"

77% knows the answer to this question: "Who was Galileo Galilei? "

And do you know the answer to this one? "The 'R.A.F. F.E.2' plane was used predominantly by which country in World War I?"

62% knows the answer to this question: "What does 25% of 20 equal? "

And do you know the answer to this one? "Under which President was Gerald Ford the Vice-President between the years 1973-74?"

94% knows the answer to this question: "What country calls Father Christmas "Der Weihnachtsmann"? "

And do you know the answer to this one? "What flower is given the most at Christmas?"

90% knows the answer to this question: "According to song, what red-nosed reindeer guided Santa's sleigh on a cloudy Christmas Eve? "

And do you know the answer to this one? "What red and white striped candy is a popular Christmas favorite?"

69% knows the answer to this question: "What two colors are associated with Christmas? "

And do you know the answer to this one? "To guard against fires, always purchase what kind of artificial Christmas tree?"

73% knows the answer to this question: "Who sang the famous song "Blueberry Hill" (1957)? "

And do you know the answer to this one? "Who sang the famous song "Eight Days A Week" (1965)?"

63% knows the answer to this question: "What combination of 12 coins which are only nickels and dimes gives you one dollar? "

And do you know the answer to this one? "If a box is 20" long, 10" wide, and 8" tall, how many cubic inches does it hold?"

44% knows the answer to this question: "Who refused to give up his or her bus seat to make room for a white passenger on 1 December 1955? "

And do you know the answer to this one? "In 1956, what country defended the Suez Canal in what is still known there as the Tripartite Aggression?"