Worlds hardest science and nature quiz.
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Question 1 of 10
There is a theory that gravity might come from a massless particle that emits gravity the way a photon emits light. What is this particle called?
Question 2 of 10
Transducers change waves: what do transducers in a phones turn sound waves into?
Question 3 of 10
What adopted home of Marie Curie never elected her to its Academy of Sciences, despite the two Nobel prizes she won?
Question 4 of 10
What star is at the end of the Little Dipper's handle?
Question 5 of 10
Instead of trying to lose calories, Australian dieters watch what other metric unit?
Question 6 of 10
As a boy, Joseph Meister was the first person I saved from rabies. And he in turn became caretaker of the institute named for me. Who am I?
Question 7 of 10
Which of these is not an element?
Question 8 of 10
Until the Roman era, rabbits were pretty much only found in Iberia, so Biblical references to rabbits should be to what mammal?
Question 9 of 10
In 1926, in his Aunt Effie's backyard, what Massachusetts physics prof was inspired by HG Wells' War of the Worlds to launch Nell, the first liquid-fueled rocket, up 41 feet?
Question 10 of 10
If you have all your toes, how many toe bones do you have?

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Who Sang Quizzes

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Who Sang These Songs?

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"Who sang the famous song "Cold Cold Heart" (2002)? "
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Who Sang These Songs?

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History Quizzes

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Unbeatable History Quiz

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"Which two Japanese cities were bombed by atomic bombs in World War II?"
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History Quiz

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History Quiz

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"What puffed rice cereal did Kellogg's introduce in 1929?"
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Geography Quizzes

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"Where in London did The Beatles record the majority of their albums?"
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Tough Geography Quiz

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"Which of these is an island in Australian territory? "
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Geography Quiz

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"In what U.S. state can you visit the Everglades?"
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15 geography questions

"Mount Fuji is the highest point in what country?"
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Geography Quiz

10 Multiple choice questions

"Which nation is located at the southernmost tip of the African continent?"

Music Quizzes

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'Invincible Music Quiz'

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"'Who sang songs 'I Will Always Love You', 'I Have Nothing', etc for the 1992 movie 'The Bodyguard'?"
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Music Trivia Quiz

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"Name the blockbuster film featuring 'My Heart Will Go On'?"
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Music Quiz

Have you ever been to a concert?

"Which member of the band Queen died in the '90s?"
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"What duo released the number-one hit single "I Got You Babe" in 1965?"

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Science Quiz

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"What term is used for military use of harmful biological agents?"
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"The ancient Greeks and Romans knew all about truffles. What is this truffle?"
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"What is the height of the sea's surface generally called?"
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"The innermost part of bones contains what?"

General Knowledge Quizzes

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Demanding Trivia Test

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"Which iconic VW model rolled off the production line in Germany for the last time in January 1978?"
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General Knowledge Quiz

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"I ended up replacing Nicole Kidman as Brad Pitt's co-star in "Mr & Mrs Smith" ... and soon replaced Jennifer Aniston as..."
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Assorted Knowledge Quiz

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"New York and New Jersey were named after places in which European country?"
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Challenging HARD Quiz

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"What was the first name of Miss Brodie, played on screen by Maggie Smith?"
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Survival Mode

Can you make it to question 15

"What is the name for a young female cow?"

Literature Quizzes

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"In 2013, the police mistook the Duke of York for an intruder at Buckingham Palace, and detained him. Who is he?"

Math Quizzes

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"What is half of 34, plus 8?"
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Math Quiz

Can you answer these 10 math questions ?

"If you pay five cents per minute for long distance calls, how much will 90 minutes of calls cost?"