41% knows the answer to this question: "In the nursery rhyme "Hey Diddle Diddle", who had a fiddle? "

And do you know the answer to this one? "Which breed of dog featured in 50s style prominently, both on skirts and in hairstyles?"

59% knows the answer to this question: "You know about smog, but what state has vog, or volcanic smog? "

And do you know the answer to this one? "What bird, which shares its name with some Atlantic islands, did coal miners use to detect dangerous gases?"

85% knows the answer to this question: "What part of their bodies can lizards dump, thanks to a fracture plane across their lower vertebra? "

And do you know the answer to this one? "From which country does the tangy, hot sauce Tabasco come?"

45% knows the answer to this question: "What is made by white blood cells to help fight off infection? "

And do you know the answer to this one? "As you might infer from the P, what two diseases typically comprise COPD?"

50% knows the answer to this question: "What is the correct contraction of it is? "

And do you know the answer to this one? "Who invented the telephone?"

85% knows the answer to this question: "What is the most flexible muscle in the body? "

And do you know the answer to this one? "Production of milk from the mammary glands is called what?"

47% knows the answer to this question: "Which American comedian and film and television star died in 1977? "

And do you know the answer to this one? "In which of these empires would you have found a cho ku nu warrior?"

70% knows the answer to this question: "What do cooks use to tell when meat is done? "

And do you know the answer to this one? "What is a long balloon filled with helium generally called?"

94% knows the answer to this question: "What word means an agent which causes disease? "

And do you know the answer to this one? "In which of these countries is the Gaelic language spoken?"

36% knows the answer to this question: "A piece of wood from the apple tree that supposedly inspired my theory of gravity went up to space with astronaut Piers Sellers. Who am I? "

And do you know the answer to this one? "Su-Lin arrived at the Brookfield Zoo near Chicago in 1936, brought there by clothing designer Ruth Harkness. And Su-Lin was the first of a kind in North America. What was it?"

53% knows the answer to this question: "Jailhouse Rock was first recorded by what artist? "

And do you know the answer to this one? "What music genre is most often associated with Garth Brooks?"

42% knows the answer to this question: "Kim Il-Sung led which country from 1948 to 1994? "

And do you know the answer to this one? "In which desert was there no rain for 10 years?"