50% knows the answer to this question: "In which country is the port of Rotterdam located? "

And do you know the answer to this one? "The 100th Oxford vs Cambridge boat race took place on which river in 1954?"

65% knows the answer to this question: "If a doctor does not perform their services properly they can be sued for what? "

And do you know the answer to this one? "The Watergate break-ins of 1972 took place in which US city?"

49% knows the answer to this question: "Cirrhosis is a chronic condition that causes scarring of what vital organ? "

And do you know the answer to this one? "Pneumonectomy is the partial or total removal of what part of the body?"

82% knows the answer to this question: "What band included Gerry Marsden on vocals? "

And do you know the answer to this one? "In The Beatles' song "Michelle", what language are some verses sung in besides English?"

86% knows the answer to this question: "What is the period of growth before birth called? "

And do you know the answer to this one? "What organ has two chambers called atriums and two chambers called ventricles?"

39% knows the answer to this question: "Who became leader of Italy in October 1922? "

And do you know the answer to this one? "Which pair of animal species and type is correct?"

52% knows the answer to this question: "The U.S. uses tons of what to melt roadway ice? "

And do you know the answer to this one? "Which of these are large birds that nest on the ground?"

50% knows the answer to this question: "Who was Queen Victoria's husband? "

And do you know the answer to this one? "What was the main crop grown by the British colonies in Virginia?"

35% knows the answer to this question: "Who sang the famous song "That’s The Way Of The World" (1975)? "

And do you know the answer to this one? "Who sang the famous song "Night Moves" (1977)?"

81% knows the answer to this question: "India conducted its first what in 1974? "

And do you know the answer to this one? "In 1978, Robert K. Jarvik was credited with which invention/discovery?"

69% knows the answer to this question: "What was the name of the 1950s rubber joke toy which made rude noises? "

And do you know the answer to this one? "Which of the following is not a mammal?"

32% knows the answer to this question: "Known for massive dung piles, what animal prefers to remain under water or mud, as their skin dries out easily? "

And do you know the answer to this one? "In 1897 Representative TI Record of Posen County, Indiana, introduced House Bill #246, which fixed the value of what number at 3.23?"