52% knows the answer to this question: "Which of these were first developed by the Roman Empire? "

And do you know the answer to this one? "What is the name of the American newspaper heiress who was kidnapped by the Symbionese Liberation Army, an urban militant group she later joined, in 1974?"

35% knows the answer to this question: "What rhizome of what plant, Zingiber officinale, is especially good at treating nausea caused by seasickness, morning sickness and chemotherapy? "

And do you know the answer to this one? "A field in which rice is grown is called a what?"

60% knows the answer to this question: "Which is not a system in the human body? "

And do you know the answer to this one? "The adjective dermal refers to which part of the body?"

81% knows the answer to this question: "What is the name for a shelf above a fireplace? "

And do you know the answer to this one? "What is a thin line or narrow beam of light called?"

49% knows the answer to this question: "In "My Fair Lady," Eliza could have done this all night. And still have begged for more! What? "

And do you know the answer to this one? "Which song by The Beach Boys does this misheard lyric fit: "Good, good, good, goodbye raisins!"?"

44% knows the answer to this question: "Which of these was a hit single for The Mamas & the Papas in 1966? "

And do you know the answer to this one? "The 'Battle of Fort Sumter' was part of which war?"

77% knows the answer to this question: "Where would you find 10% of the worldís known species? "

And do you know the answer to this one? "What Australian island has had carnivorous devils and wolves named for it?"

37% knows the answer to this question: "What determines how loud or soft a sound is? "

And do you know the answer to this one? "Why were no FIFA World Cup competitions held during the 1940s?"

86% knows the answer to this question: "William Golding's hit 50s novel was "Lord of the " what? "

And do you know the answer to this one? "What is the missing word: Better safe than ...."

78% knows the answer to this question: "Which Greek philosopher was a boyhood tutor to Alexander the Great? "

And do you know the answer to this one? "At what battle was Napoleon defeated in 1815?"

87% knows the answer to this question: "Humans are omnivores and therefore eat what? "

And do you know the answer to this one? "What fluid-filled sac surrounds the human embryo?"

37% knows the answer to this question: "What is pain resulting from insufficient blood to the heart? "

And do you know the answer to this one? "Someone describes as sedentary spends a lot of time doing what?"