40% knows the answer to this question: "Which U.S. city has the largest population? "

And do you know the answer to this one? "Which canal splits North and South America?"

78% knows the answer to this question: "Which species best matches this description, "high-jumping, lightly-built antelope from Southern Africa"? "

And do you know the answer to this one? "If you run a shop specializing in magazines, newspapers and other general items, what is your job?"

44% knows the answer to this question: "Finish the title of Meat Loaf's song: "I'd do Anything for Love (But ______". "

And do you know the answer to this one? "King Farouk I of which country was forced to abdicate after a coup in 1952?"

31% knows the answer to this question: "Conjoined twins Tatiana and Krista Hogan appear to have had what superpower? "

And do you know the answer to this one? "What German festival, known locally as Wiesn, begins with the mayor of Munich declaring "O'zapft is," meaning "The barrel has been tapped"?"

44% knows the answer to this question: "I attend Hogwarts School where I play Quidditch and my spoiled cousin is named Dudley, who am I? "

And do you know the answer to this one? "What does the idiom mean "have a chip on your shoulder"?"

50% knows the answer to this question: "Finish this action movie title, "_______ of the Galaxy". "

And do you know the answer to this one? "Before becoming known for drunken debauchery, who appeared in three Disney remakes: The Parent Trap, Freaky Friday and Herbie: Fully Loaded?"

52% knows the answer to this question: "Vatican City borders which Italian city? "

And do you know the answer to this one? "The 1976 hit single by Wild Cherry was called 'Play That...' what?"

82% knows the answer to this question: "Psoriasis is an itchy condition of what part of the human body? "

And do you know the answer to this one? "BPM stands for what in medical terminology?"

53% knows the answer to this question: "What season has the warmest weather in the U.S.? "

And do you know the answer to this one? "The Heimlich Maneuver, named for a Cincinnati physician, is normally used to help whom?"

45% knows the answer to this question: "Which family card game, launched in 1971, is based on matching colours and numbers? "

And do you know the answer to this one? "Where are the lines of longitude the farthest apart?"

88% knows the answer to this question: "Who sang the famous song "ABC" (1970)? "

And do you know the answer to this one? "Who sang the famous song "Take A Chance On Me" (1978)?"

53% knows the answer to this question: "Who sang the famous song "Mona Lisa" (1950)? "

And do you know the answer to this one? "Who sang the famous song "I Heard It Through The Grapevine" (1969) ?"