66% knows the answer to this question: "Because bakers were worried about shortchanging customers, how many loaves are there in a baker's dozen? "

And do you know the answer to this one? "Torald Sollmann tried to find an antidote to what horrific gas ... by spraying himself with it?"

51% knows the answer to this question: "Which film is about little plastic toy building blocks? "

And do you know the answer to this one? "Which company is behind the Windows operating system?"

68% knows the answer to this question: "Who was Harry S. Truman? "

And do you know the answer to this one? "Dr Wu spliced dinosaur DNA with frog DNA, creating a whole theme park of dinos in what book-turned-movie?"

79% knows the answer to this question: "What river forms the boundary between Texas and Mexico? "

And do you know the answer to this one? "Which mountain isn't a volcano?"

41% knows the answer to this question: "The musical "Good Vibrations" features the songs of which legendary band? "

And do you know the answer to this one? "What term for an institution of higher learning comes from a Latin word meaning "the whole"?"

72% knows the answer to this question: "What is a device that is used to regulate a heartbeat called? "

And do you know the answer to this one? "What does "a.k.a." stand for?"

72% knows the answer to this question: "8x48+11 equals what number? "

And do you know the answer to this one? "Computer RAM is typically sold in multiples of 64 megabytes, so which of the following would not be available?"

45% knows the answer to this question: "Blake earns £1,000 a month. Her boss tells her she will get a 70% pay rise. What is her new monthly gross pay? "

And do you know the answer to this one? "You cannot die MacLeod. Accept it!. Name the movie?"

41% knows the answer to this question: "Who keeps experiencing the same day over and over in Groundhog Day? "

And do you know the answer to this one? "Which real-life person was the subject of the 1999 movie 'Rogue Trader'?"

52% knows the answer to this question: "What is the capital of Kentucky? "

And do you know the answer to this one? "The Shard in London is a what?"

74% knows the answer to this question: "What mountains were first crossed by Blaxland, Lawson and Wentworth in 1813? "

And do you know the answer to this one? "First Battle of the Marne saw who called into action for the first time?"

69% knows the answer to this question: "If you earn $8 in 11 minutes, how much will you earn in 7 hours? "

And do you know the answer to this one? "What number comes next in the sequence 525, 520, 510, 495?"