49% knows the answer to this question: "By what name is aerial combat often called? "

And do you know the answer to this one? "Rapid eye movement and slow wave are two deep phases of what activity?"

94% knows the answer to this question: "Patron is a luxury brand of what Mexican booze, and is sold in hand-blown individually numbered bottles? "

And do you know the answer to this one? "What family of birds, known as Trochilidae, includes the only birds that can fly backwards?"

75% knows the answer to this question: "Vodka's name means "little water" in what language? "

And do you know the answer to this one? "Henri Charpentier may have discovered what cooking technique in 1895, when he accidentally set a crepe pan on fire?"

38% knows the answer to this question: "Ola Nordmann and his wife Kari are what country's version of John Bull or Uncle Sam? "

And do you know the answer to this one? "Captain Ahab was on a never-ending quest to kill what?"

46% knows the answer to this question: "Indonesia, the largest archipelago in the world, holds which capital city? "

And do you know the answer to this one? "The Valley of the Kings and the Valley of the Queens stands on the west bank of what river?"

77% knows the answer to this question: "What does Steve McQueen ride at the end of 'The Great Escape'? "

And do you know the answer to this one? "Who had the hot song from the movie "The Graduate"?"

36% knows the answer to this question: "Where was the hottest ever temperature in the US recorded in 2013? "

And do you know the answer to this one? "The book "The Time Machine" was written by whom?"

65% knows the answer to this question: "Which city is a key town for the Muslim, Jewish and Christian faiths? "

And do you know the answer to this one? "What nationality was Yoko Ono, who married John Lennon in 1969?"

87% knows the answer to this question: "Made from batter, what English savoury dish is typically served with roast beef? "

And do you know the answer to this one? "The first widely eaten salad in North America was popularised by the Dutch. It is made of raw shredded cabbage, what is it?"

59% knows the answer to this question: "In the old days, what did the 3 R's stand for? "

And do you know the answer to this one? "In which ocean is Hawaii?"

50% knows the answer to this question: "What was the first name of famous 1950s Christian evangelist Dr Graham? "

And do you know the answer to this one? "You can find the Alamo at which location?"

44% knows the answer to this question: "What is half of 34, plus 70? "

And do you know the answer to this one? "How many pencils are in a box of ten dozen?"