56% knows the answer to this question: "A scientist that studies the Earth's surface is called what? "

And do you know the answer to this one? "They say no two snowflakes are alike, but all snowflakes are alike chemically. What is the chemical formula for a pure snowflake?"

36% knows the answer to this question: "In what century did Winston Churchill lead the United Kingdom? "

And do you know the answer to this one? "What was "Spirit of St. Louis"?"

70% knows the answer to this question: "The 1956 Suez crisis was about access to which transport-related object? "

And do you know the answer to this one? "General Douglas Macarthur led the forces of which country in the Korean War?"

33% knows the answer to this question: "... Morrison? "

And do you know the answer to this one? "Which Central American country's highest elevation point is Cerro Chirripo at 3,810 meters?"

33% knows the answer to this question: "Michael Jackson's first wife was whose daughter? "

And do you know the answer to this one? "What British girl group found a number one hit in the 1990s with 'Wannabe'?"

65% knows the answer to this question: "Cognac is a type of which liquor? "

And do you know the answer to this one? "Which scientific term is best defined as a group of galaxies?"

76% knows the answer to this question: "Which of these continent - country - capital groups is correct? "

And do you know the answer to this one? "Fresno and San Francisco are cities in which state?"

32% knows the answer to this question: "Where were the first Olympic Games held? "

And do you know the answer to this one? "Which islands made the headlines in 1982 when they were invaded by Argentina?"

57% knows the answer to this question: "What country is made up of 3,000 islands, the largest being Honshu, Hokkaido, Kyushu and Shikoku? "

And do you know the answer to this one? "Which of these continent - country - capital groups is correct?"

33% knows the answer to this question: "A zincographer worked with which metal? "

And do you know the answer to this one? "A 'bakers dozen' is how many?"

42% knows the answer to this question: "Bananas are in which USDA 2005 MyPyramid group? "

And do you know the answer to this one? "Which kind of fruit is a cantaloupe?"

93% knows the answer to this question: "Former Spice Girl Posh Spice is well known for her what? "

And do you know the answer to this one? "What does 'MTV' stand for?"