74% knows the answer to this question: "Hey Jude' is a song by which artist? "

And do you know the answer to this one? "What Pennsylvania city is famous for manufacturing steel?"

62% knows the answer to this question: "Dr Spock was famous in which medical field? "

And do you know the answer to this one? "Which is the part of the plant where photosynthesis takes place?"

66% knows the answer to this question: "Who sang the famous song "I’d Like To Teach The World To Sing" (1972)? "

And do you know the answer to this one? "Who sang the famous song "The Air That I Breathe" (1974)?"

34% knows the answer to this question: "Which plant is Ireland's national emblem? "

And do you know the answer to this one? "You could say that Marie Curie died as a result of her work. What killed her? "

68% knows the answer to this question: "A mason usually worked with which material? "

And do you know the answer to this one? "What nickname is given to the Santa Clara valley in California?"

85% knows the answer to this question: "If I need a fork, knife and spoon for 42 people, how many items of cutlery do I need? "

And do you know the answer to this one? "What do-gooder rock band attracted controversy when it emerged they had left Ireland for the Netherlands, to avoid paying taxes at home?"

87% knows the answer to this question: "Edgar Degas' "Dance Class" and "Rehearsal on Set" were set in which type of classroom? "

And do you know the answer to this one? "Deciduous teeth is also known as...?"

33% knows the answer to this question: "Which famous trumpeter and actor died in 1971? "

And do you know the answer to this one? "Which surname was adopted by the British royal family in 1917?"

91% knows the answer to this question: "Which of these states was not a member of the Confederate States of America? "

And do you know the answer to this one? "Add the letters IA to the name of this African country and you get the name of another African country. Which one?"

72% knows the answer to this question: "In television technology, what was introduced in 1971 and is represented by the acronym VCR? "

And do you know the answer to this one? "Which B9vitamin should be taken by those wanting to get pregnant?"

84% knows the answer to this question: "'De plane! De plane!' "

And do you know the answer to this one? "Which former "Friends" star called off her engagement to guitarist Johnny McDaid in December 2015?"

50% knows the answer to this question: "Who sang the famous song "Ain’t No Mountain High Enough" (1967)? "

And do you know the answer to this one? "Which of these is commonly known as short-sightedness?"