55% knows the answer to this question: "The light bulb was invented by whom? "

And do you know the answer to this one? "Which of these major natural disasters occurred in San Francisco in both 1906 and 1989?"

87% knows the answer to this question: "Which is not a contagious illness? "

And do you know the answer to this one? "Which of these animals is a small, burrowing mammal with a protective bony shell?"

51% knows the answer to this question: "Cumulus and stratus are types of what? "

And do you know the answer to this one? "Which of these meals does not contain protein?"

93% knows the answer to this question: "Which is the only continent without snakes or reptiles? "

And do you know the answer to this one? "In which bay is Alcatraz located?"

60% knows the answer to this question: "Which vegetables are named for the capital city of Belgium? "

And do you know the answer to this one? "Which of these is not one of the boroughs that makes up the city of New York?"

76% knows the answer to this question: "Which of these is the longest river in the world? "

And do you know the answer to this one? "What country has considered changing its national anthem to Sibelius's Finlandia?"

40% knows the answer to this question: "What is the post code known as in America? "

And do you know the answer to this one? "Which of these famous philosophers is Greek?"

88% knows the answer to this question: "Which nationality do shanghai pan-fried noodles belong to? "

And do you know the answer to this one? "Strictly speaking, what food is bee vomit, since nectar is converted in the insect's oesophagus and then upchucked?"

64% knows the answer to this question: "A field in which rice is grown is called a what? "

And do you know the answer to this one? "Out of these, which is NOT a major US city?"

90% knows the answer to this question: "Finish the name of the hard rock band: Van ______. "

And do you know the answer to this one? "What is the name of the toy which is a decompressed helical spring?"

77% knows the answer to this question: "Which of these landforms is an area of land lying between hills or mountains? "

And do you know the answer to this one? "What is made by white blood cells to help fight off infection?"

30% knows the answer to this question: "How many is six score? "

And do you know the answer to this one? "What is the difference between 12 and 3?"