56% knows the answer to this question: "Which of these is an operating system used on smartphones and tablet computers? "

And do you know the answer to this one? "Which European city has the highest population? "

67% knows the answer to this question: "About 1/3 of Australia's population tuned into the wedding of what prince in 2011? "

And do you know the answer to this one? "What spilled from the Exxon Valdez?"

54% knows the answer to this question: "Which author penned "Oliver Twist", "A Christmas Carol" and "Little Nell? "

And do you know the answer to this one? "What building would a switchboard operator work in?"

80% knows the answer to this question: "On November 22, 1963, who was shot and killed while riding in a Lincoln Continental? "

And do you know the answer to this one? "The description "build as an amphitheater that would be unmatched in size" best describes what?"

79% knows the answer to this question: "Who sang the famous song ”Psycho Killer” (1977)? "

And do you know the answer to this one? "Who sang the famous song "Stadt am Meer" (2013)? "

83% knows the answer to this question: "Who sang the famous song ”Just Like a Woman” (1966)? "

And do you know the answer to this one? "Who sang the famous song "Needle And The Damage Done" (1972)"

41% knows the answer to this question: "A small horseshoe-shaped body of water along a coast is known as a what? "

And do you know the answer to this one? "What is the most common form of Chinese spoken in the south of China, in Hong Kong and in Macau?"

77% knows the answer to this question: "Which Oceanic country's highest elevation point is Mount Cook at 3,764 meters? "

And do you know the answer to this one? "The Rover Spirit was sent to which planet?"

46% knows the answer to this question: "Who sang the famous song "Feeling Good" (1965) "

And do you know the answer to this one? "Who sang the famous song "Dancing In The Street" (1985)"

46% knows the answer to this question: "Who sang the famous song "Gunilds elsker" (1998)? "

And do you know the answer to this one? "Who sang the famous song "Guajira" (1971)? "

51% knows the answer to this question: "Sweden is located on which continent? "

And do you know the answer to this one? "Which popular pancake topper is largely produced in Vermont? "

37% knows the answer to this question: "What was the first artificial satellite to be launched in to space by the USSR? "

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