41% knows the answer to this question: "Known for its red-light district and cannabis-selling cafes, what city's appropriate symbol is three crosses, or "xxx"? "

And do you know the answer to this one? "What is 0.88 as a percentage from 1?"

93% knows the answer to this question: "Brother Spud and Sister Yam were part of which toy brand? "

And do you know the answer to this one? "What was the nickname given to World War I ace pilot Manfred Von Richtofen?"

36% knows the answer to this question: "In 2014, Bohuslav Sobotka became the Prime Minister of which Eastern European country? "

And do you know the answer to this one? "In what century did John F. Kennedy achieve greatness?"

38% knows the answer to this question: "Who sang the famous song "Up Where We Belong" (1982) "

And do you know the answer to this one? "Who sang the famous song "New Kid In Town" (1977)"

56% knows the answer to this question: "Tam's fish tank contains 89 koi carp, and 21 are male. How many are female? "

And do you know the answer to this one? "Which part of the body produces hydrochloric acid?"

79% knows the answer to this question: "Olive signs up for a gym membership, pays a £75 joining fee and £50 per month. What's the first year cost? "

And do you know the answer to this one? "James Dean plays the sultry cigarette-smoking mischief maker Jim Stark, in which critically acclaimed film by Nicholas Ray?"

32% knows the answer to this question: "Which composer did Chuck Berry ask to roll over? "

And do you know the answer to this one? "Which figure sits at the center of the table in Leonardo da Vinci's "The Last Supper"?"

60% knows the answer to this question: "The bones around your chest that protect organs such as the heart are called? "

And do you know the answer to this one? "Which muscle pumps blood throughout your body?"

51% knows the answer to this question: "Who sang the famous song "Breaking Up Is Hard To Do" (1962)? "

And do you know the answer to this one? "Who sang the famous song "My Generation" (1965)?"

37% knows the answer to this question: "On what Japanese cities did the U.S. drop atomic bombs in 1945? "

And do you know the answer to this one? "Where is Tiananmen Square?"

56% knows the answer to this question: "Queen Elizabeth II celebrated which anniversary as monarch in 2012? "

And do you know the answer to this one? "What was the name of the group which conquered England in 1066?"

32% knows the answer to this question: "Which American singer was born in 1979? "

And do you know the answer to this one? "These famous brothers both had F as a middle initial, standing for Fitzgerald or Francis, respectively. Who?"