45% 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? "Which African country has been ruled by Colonel Gaddafi for almost 40 years?"

66% knows the answer to this question: "Which of these is not a root we eat? "

And do you know the answer to this one? "What would you call an "inborn ability of significant quality for artistic or other achievement"?"

89% 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? "What popular Chinese game is played with a set of tiles?"

36% knows the answer to this question: "Which famous actor died in 1973? "

And do you know the answer to this one? "What is the name of an immature cat?"

77% knows the answer to this question: "In one of those horrible ironies, Myra Jones, who was stabbed to death in 1988 by a serial killer, had been Janet Leigh's body double in what movie, in which she was stabbed to death by a serial killer in what movie? "

And do you know the answer to this one? "To please Queen Amyitis, who was from verdant Medea, Nebuchadnezzar built a hanging garden in what ancient desert kingdom?"

76% knows the answer to this question: "What bird, which shares its name with some Atlantic islands, did coal miners use to detect dangerous gases? "

And do you know the answer to this one? "You know about smog, but what state has vog, or volcanic smog?"

39% knows the answer to this question: "Which "I" has the Star of David on its national flag? "

And do you know the answer to this one? "The soft squishy material filling up a bone is called what?"

62% knows the answer to this question: "Earth completes a rotation on its own axis in how many hours? "

And do you know the answer to this one? "The muscular rigidity that forms in a corpse is called what?"

44% knows the answer to this question: "Who sang the famous song "The Sound Of Silence" (1966) "

And do you know the answer to this one? "Who sang the famous song "Angie" (1973)"

84% knows the answer to this question: "Which of these countries has no land borders with other countries? "

And do you know the answer to this one? "What 1981 British film tells the fact-based story of two athletes in the 1924 Olympics?"

60% knows the answer to this question: "What is the capital city of Austria? "

And do you know the answer to this one? "What word describes the act of maintaining grape vines and canopies?"

50% knows the answer to this question: "What is 33 times 5? "

And do you know the answer to this one? "The "salsa" was derived from which dance?"