65% knows the answer to this question: "Which Italian location has a famous Leaning Tower? "

And do you know the answer to this one? "What were the armed combatants who entertained audiences in the Roman Empire by engaging in mortal combat called?"

92% knows the answer to this question: "According to Hindu thinker Kanada, "Weight causes falling; it is imperceptible and known by inference." What phenomenon was he explaining? "

And do you know the answer to this one? "What gets formed by the mixture of soap with the calcium and magnesium ions found in hard water?"

74% knows the answer to this question: "Who made the album: Thriller? "

And do you know the answer to this one? "The Spanish holiday, National Day, celebrates whose arrival in America?"

89% knows the answer to this question: "Black Monday in 1987 refers to which of these areas? "

And do you know the answer to this one? "During which Civil War did the 'Battle of Memphis' take place?"

57% knows the answer to this question: "Which American singer was born in 1979? "

And do you know the answer to this one? "52 Americans were held hostage for 444 days in which country in 1980-81?"

64% knows the answer to this question: "Which Asian country exploded a nuclear bomb underground in 2013? "

And do you know the answer to this one? "Which British Prime Minister during the 1950s was in office during World War II?"

93% knows the answer to this question: "Who was Anne Frank? "

And do you know the answer to this one? "What is used in manufacturing matches, fertilisers and pesticides, and in vulcanisation of rubber?"

37% knows the answer to this question: "Which of the following describes a compound that prevents infection or decay? "

And do you know the answer to this one? "What was the first name of writer Fleming, who wrote the James Bond novels?"

90% knows the answer to this question: "Which of these countries is divided into Highlands and Lowlands? "

And do you know the answer to this one? "What is meant by the term "drapery"?"

34% knows the answer to this question: "As a way of thanking backers in Missouri, what did Charles Lindbergh nickname his most famous plane? "

And do you know the answer to this one? "What is the name of art which represents the elements of a story?"

30% knows the answer to this question: "If I order surf 'n turf at a restaurant, what should I expect to be served? "

And do you know the answer to this one? "According to personal chef Gerhardt Shtammer, whose favorite dessert was either a strudel or an eclair decorated with swastikas?"

86% knows the answer to this question: "What is the name for leather with a napped, fuzzy finish? "

And do you know the answer to this one? "In 1917, which two tool-and-die cutters invented the first practical power drill?"