83% knows the answer to this question: "What did a greengrocer sell? "

And do you know the answer to this one? "Milkmen in the 70s and 80s delivered milk in which type of bottles?"

45% knows the answer to this question: "A distiller made which type of product? "

And do you know the answer to this one? "A bobbin boy worked in which industry?"

36% knows the answer to this question: "Most people conscripted into the Army in the 1930s and 40s went in at which rank? "

And do you know the answer to this one? "Who did a farrier make shoes for?"

68% knows the answer to this question: "What relation was Bobby Kennedy to President JF Kennedy? "

And do you know the answer to this one? "What was the occupation of 1960s celebrity Twiggy?"

62% knows the answer to this question: "American politician Spiro Agnew was convicted of which crime in 1973? "

And do you know the answer to this one? "Which actor starred in 1967 movie "The Graduate"?"

75% knows the answer to this question: "Nadia Comaneci earned perfect scores in which sport in 1976? "

And do you know the answer to this one? "Which letter surname was adopted by activist Malcolm Little?"

33% knows the answer to this question: "What was the name of the lead singer of 70s rock group Queen? "

And do you know the answer to this one? "Who starred alongside Paul Newman in 1973 movie "The Sting"?"

32% knows the answer to this question: "Who was found guilty of killing Lee Harvey Oswald, who shot JFK? "

And do you know the answer to this one? "Martin Luther King donated his Nobel Prize money to which cause?"

53% knows the answer to this question: "What did Nissan call its range of cars for the European market? "

And do you know the answer to this one? "What relation to Henry Fonda was fellow actor Jane?"

51% knows the answer to this question: "Which country put the Mariner spacecraft into orbit? "

And do you know the answer to this one? "Joanne Woodward was married to which fellow actor?"

86% knows the answer to this question: "Which TV series was set on the Ponderosa ranch, Nevada? "

And do you know the answer to this one? "Established in 1950, what did the UN World Meteorological Organisatio monitor?"

35% knows the answer to this question: "What was Elvis' surname? "

And do you know the answer to this one? "What was the name of Queen Elizabeth II's royal yacht, launched in 1953?"