49% knows the answer to this question: "In what decade did World War II end? "

And do you know the answer to this one? "How many zeros do you write in one thousand?"

32% knows the answer to this question: "Riverdance and Lord of the Dance highlighted which country's dance traditions? "

And do you know the answer to this one? "Is a mandolin a wind, string, percussion or keyboard instrument?"

83% knows the answer to this question: "What is it called when a current skips part of the circuit? "

And do you know the answer to this one? "What city is home to a temple remnant called the Western Wall, also known as the Wailing Wall?"

61% knows the answer to this question: "Because there was already a Michael Fox in the Screen Actors Guild, Michael Andrew Fox picked what new name, largely to avoid cute headlines like "Michael: A Fox"? "

And do you know the answer to this one? "What device controls temperature with a switch?"

37% knows the answer to this question: "The brilliant plumage of what national bird of India is due to an optical interference phenomenon called the Bragg reflection? "

And do you know the answer to this one? "Which illness is caused by lack of vitamin 'C'?"

59% knows the answer to this question: "Israel launched Operation Protective Edge in which area in 2014? "

And do you know the answer to this one? "Which fruit is high in fat?"

34% knows the answer to this question: "How many days are there in a non-leap year calendar year? "

And do you know the answer to this one? "Which type of dog's name also means 'hoarse'?"

81% knows the answer to this question: "Who were the rulers of Ancient Egyptian society? "

And do you know the answer to this one? "What country did Czar Nicholas lead?"

60% knows the answer to this question: "A mountainous vent in the Earth's crust is known as a what? "

And do you know the answer to this one? "What is the name of the pole around which British children dance on May Day?"

43% knows the answer to this question: "The four-leaf clover, which symbolizes good luck, is what color? "

And do you know the answer to this one? "Which US state was battered by Hurricane Andrew in 1992?"

94% knows the answer to this question: "Where is the White House located? "

And do you know the answer to this one? "What would you call the treatment of disease, usually cancer, by chemical agents?"

93% knows the answer to this question: "What is a "Tortilla"? "

And do you know the answer to this one? "What substance in your ears helps keep germs and dirt out?"