60% knows the answer to this question: "What emperor, Russia's first, died when he leaped into the cold Gulf of Finland to save some drowning sailors? "

And do you know the answer to this one? "How many times has an Atomic Bomb been used in history?"

80% knows the answer to this question: "Just below the epiglottis are two plates called the thyroid cartilage, which in turn meet to produce what body part with a fruity name? "

And do you know the answer to this one? "Which of these scientific terms is defined as the Earth moving between the Sun and the Moon?"

43% knows the answer to this question: "Dortmund and Frankfurt are major cities in which European country? "

And do you know the answer to this one? "The name of which Irish county sounds like something in a wine bottleneck?"

50% knows the answer to this question: "What is the medical term for sleeping difficulties? "

And do you know the answer to this one? "Which soft leather shoes were worn by many indigenous peoples of North America?"

55% knows the answer to this question: "Which birds are traditionally associated with Trafalgar Square in London? "

And do you know the answer to this one? "Variety is the spice of …"

79% knows the answer to this question: "Which of these world leaders was Cuban? "

And do you know the answer to this one? "Which 'M' is the capital of Wisconsin?"

31% knows the answer to this question: "Which one of these words means filled with joy? "

And do you know the answer to this one? "Which of these colors is NOT on the French flag?"

38% knows the answer to this question: "Complete the name of the Four Ace's 1955 song 'Love is a Many _____ Thing'. "

And do you know the answer to this one? "What did a dinosaur's long tail help him do?"

35% knows the answer to this question: "The Japanese art of paper-folding is called what? "

And do you know the answer to this one? "The King in the film 'The King and I' is ruler of where?"

55% knows the answer to this question: "Poodle, collie, beagle and golden retriever are all types of what animal? "

And do you know the answer to this one? "What do you call a tank used to detain domestic wastes?"

36% knows the answer to this question: "What famous US prison closed in 1963? "

And do you know the answer to this one? "What came before 'Poppins' in the 1964 Disney hit?"

82% knows the answer to this question: "In what city can you watch one of the annual summer Proms concerts at the Royal Albert Hall? "

And do you know the answer to this one? "Which of these capital cities is in Africa?"