99% knows the answer to this question: "The amount of mineral matter per square centimetre of bones is known as what? "

And do you know the answer to this one? "When the ... gets tough, the tough get going"

97% knows the answer to this question: "The airport at Rome is named after which famous artist? "

And do you know the answer to this one? "Which illness is caused by lack of vitamin 'C'?"

96% knows the answer to this question: "What is it called when an object makes a full circular rotation? "

And do you know the answer to this one? "Complete the name of this famous person - Coco _____"

96% knows the answer to this question: "What word means "pertaining to medical care"? "

And do you know the answer to this one? "The Andes, which runs partly through Argentina, is what kind of natural formation?"

97% knows the answer to this question: "In what year was Pearl Harbor attacked by the Japanese? "

And do you know the answer to this one? "Billy Graham is known best as what?"

96% knows the answer to this question: "What state celebrates King Kamehameha Day every June 11? "

And do you know the answer to this one? "Which Johnny Weissmuller character's yell was apparently created by combining a violin G-string, a hyena's howl, a dog's growl and a camel's bleat? "

94% knows the answer to this question: "Which famous ship sank on April 15th 1912? "

And do you know the answer to this one? "The coccyx is at the base of which structure?"

83% knows the answer to this question: "Who sang the famous song "Hassisen kone" (1980)? "

And do you know the answer to this one? "Who sang the famous song "God Save The Queen" (1977)"

97% knows the answer to this question: "A 'five o'clock shadow' is referring to which of these? "

And do you know the answer to this one? "The Beatles have nothing but what "Eight Days a Week"?"

96% knows the answer to this question: "Which form of transportation was invented first? "

And do you know the answer to this one? "In 1995 who most famously said 'There were three of us in this marriage'?"

99% knows the answer to this question: "Where would you find the fictional Dracula's castle? "

And do you know the answer to this one? "What gas do red blood cells carry around the body?"

90% knows the answer to this question: "What character does Dick Van Dyke play in Mary Poppins? "

And do you know the answer to this one? "What is the opening line to 'These Arms Are Mine' by Otis Redding?"