83% knows the answer to this question: "What medical word refers to the heart? "

And do you know the answer to this one? "Which of the following seafood animals is known for swimming upstream?"

50% knows the answer to this question: "Johannesburg is what country's largest city? "

And do you know the answer to this one? "Digits are another name for which part of the body? "

74% knows the answer to this question: "What word completes the rhyme "There once was a man from Beijing/All his life he had hoped to be"? "

And do you know the answer to this one? "On what planet did the NASA space probe Pathfinder land in July 1997?"

71% knows the answer to this question: "Vincent van Gogh's later self-portraits featured bandages, due to his having cut what off? "

And do you know the answer to this one? "Which word is spelled correctly?"

84% knows the answer to this question: "Which science term means "moving the body"? "

And do you know the answer to this one? "Which of these foods is in the vegetables group?"

77% knows the answer to this question: "What animal possesses poison glands, and usually has warty skin? "

And do you know the answer to this one? "The flu pandemic of 1918 was named after which country?"

87% knows the answer to this question: "Who duetted with Boyz II Men on the hit 'One Sweet Day'? "

And do you know the answer to this one? "What is the correct contraction of it is?"

66% knows the answer to this question: "Larry LaPrise and his Ram Trio just put their right feet in and put their right feet out when they created what dance in the late 1940s? "

And do you know the answer to this one? "What was the title of the 1967 hit by The Troggs?"

35% knows the answer to this question: "Who sang the famous song 'Theme From Shaft' (2000)? "

And do you know the answer to this one? "Who sang the famous song "Another Brick In The Wall" (1979) ?"

82% knows the answer to this question: "What does ITTF, the governing body for all international table tennis associations, stand for? "

And do you know the answer to this one? "In South America, what are 'gauchos'?"

79% knows the answer to this question: "What special shoes did Dorothy wear in the movie "The Wizard of Oz"? "

And do you know the answer to this one? "With which of these industries would you associate the brand "Lufthansa"?"

34% knows the answer to this question: "A mason usually worked with which material? "

And do you know the answer to this one? "What plague that killed a quarter, maybe as much as a third, of the European population from 1347 to 1352?"