33% knows the answer to this question: "If you cannot beat them, ... them "

And do you know the answer to this one? "If you have never seen the ... of the tree, you cannot know how tall it stands"

90% knows the answer to this question: "Which Central American nation found itself in a civil war from 1979 to 1992? "

And do you know the answer to this one? "The Home Box Office was founded in 1972 in the USA. What is it currently known by?"

75% knows the answer to this question: "What should you sleep under to prevent being bitten by a mosquito carrying malaria? "

And do you know the answer to this one? "What did medieval knights wear into battle to protect themselves from injury?"

54% knows the answer to this question: "According to Fergie, what is it that 'Big Girls Don't.. 'do in her hit of 2007? "

And do you know the answer to this one? "What liquid substance, invented in 1926, is added to a car's cooling system?"

40% knows the answer to this question: "The male of what mainly nocturnal insect produces a loud, rhythmic, chirping sound? "

And do you know the answer to this one? "Who sang the famous song "Dancing Queen" (1976)? "

52% knows the answer to this question: "Finish this line of lyrics: 'I've travelled each and every highway - And more, much more than this - I did it ___________'. "

And do you know the answer to this one? "Which of the following was a member of The Beatles?"

33% knows the answer to this question: "What is the popular combination of drinks? "

And do you know the answer to this one? "Which of the following is an essential base ingredient for quiche?"

84% knows the answer to this question: "Which company is responsible for messages called Tweets? "

And do you know the answer to this one? "Which words spell 650?"

42% knows the answer to this question: "Ricotta, halloumi and mascarpone are types of what? "

And do you know the answer to this one? "Which of these has no cholesterol?"

52% knows the answer to this question: "Where in London did The Beatles record the majority of their albums? "

And do you know the answer to this one? "What language is most widely spoken in China?"

40% knows the answer to this question: "What was the name given to the main 1960s counterculture group? "

And do you know the answer to this one? "What is the missing word from the 1960s western film, "Butch Cassidy and the _ Kid"?"

72% knows the answer to this question: "What was the nickname adopted by American comedian Julius Henry Marx? "

And do you know the answer to this one? "Which prolific director famous for his mind-bending psychological thrillers directed Vertigo, Rear Window, and Strangers on a Train?"