Most of the oxygen in the air is produced by what chemical process?
Question 2 of 10
Which of these devices would you most likely use to listen to music?
Question 3 of 10
Alfred J Gross invented this for doctors, who didn't like it, although the last people to use it were hospital doctors. Mind you, the tech behind it also powers garage openers. What is it?
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Question 4 of 10
Which space probe landed on Mars in June 1999?
Question 5 of 10
What country shares its name with an ink that is chemically inert, not affected by sunlight and virtually permanent?
Question 6 of 10
At 11:38 a.m., on January 28, 1986, just 74 seconds into its 10th mission, an O-ring ruptured, setting off a fiery explosion in the main fuel tank of which space shuttle?
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Question 7 of 10
What happens to the pressure of water as depth under the water increases?
Question 8 of 10
The grandfather paradox is held up as one of the risks of what improbable science fiction activity?
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Question 9 of 10
Water freezes at what temperature?
Question 10 of 10
Wood's glass, which blocks most wavelengths of light, was originally used to encode messages. What kind of light does it let through?
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History Quizzes
History Quiz
You will fail at this history quiz
Average Score: 9
100% knows the answer to this question:
"After the Battle of Hastings, what did William become known as?
"
History Quiz That Pushes Your Limits
Can you beat a rocking 7?
Average Score: 8
100% knows the answer to this question:
"The July Revolution of 1830 toppled Charles X in favor of Louis-Philippe. Where?
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10 questions about history!
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Average Score: 9
99% knows the answer to this question:
"Which country did Joan of Arc try to set free from English domination?
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History Quiz
Try scoring a 7+
Average Score: 8
98% knows the answer to this question:
"Geli Raubal had commited suicide on September 18th 1931, but who was her well known uncle?
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History Trivia Quiz
Scoring higher than a 6 is impossible!
Average Score: 8
100% knows the answer to this question:
"In 2014, the International Court of Justice ruled that what country should stop its whaling program?
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History Trivia Quiz
Scoring higher than a 6 is impossible!
Average Score: 9
100% knows the answer to this question:
"What is the term for the amount of money a government owes?
"
History Quiz
Are you able to score a perfect 10?
Average Score: 9
99% knows the answer to this question:
"How old was Prince Harry when his mother died?
"
Challenging History Quiz
Please tell us if you scored higher than a 5
Average Score: 9
100% knows the answer to this question:
"Who was murdered in the Ides of March in 44 BC by a group of senators led by Brutus and Cassius?
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10 questions about history!
go to quiz
Average Score: 7
100% knows the answer to this question:
"In 1950, scientists started to date which documents, found in the Dead Sea?
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Geography Quizzes
Hard Geography Quiz
You won't score a 6 or higher!
Average Score: 9
100% knows the answer to this question:
"Which part of the UK has the largest population?
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Have you ever been to Japan?
HARD Geography Quiz
Average Score: 6
100% knows the answer to this question:
"In what country was Citroen founded in 1919?
"
Geography Quiz
Find out if you belong to the 1%
Average Score: 9
100% knows the answer to this question:
"What breed of dogs originated in Afghanistan?
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Play This Geography Quiz Now!
It's going to be impossible to score a 6+
Average Score: 6
100% knows the answer to this question:
"Which country lies directly south of Mongolia?
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Challenging Geography Quiz
We hope you can handle this quiz!
Average Score: 9
100% knows the answer to this question:
"Which of these countries has a population of over 1.2 billion?
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Play This Geography Quiz Now!
It's going to be impossible to score a 6+
Average Score: 6
100% knows the answer to this question:
"Which country lies directly south of Mongolia?
"
Quiz on Geography
Good luck making this fun quiz!
Average Score: 9
100% knows the answer to this question:
"In what city would you find Hyde Park, as well as Piccadilly, Trafalgar and Belgrave squares?
"
Challenging Geography Quiz
We hope you can handle this quiz!
Average Score: 9
100% knows the answer to this question:
"If you were in Florida, which of these cities might you be in?
"
10 Geography Questions
How many did you answer correctly?
Average Score: 9
100% knows the answer to this question:
"The description "birthplace of American freedom" best relates to which landmark?
"
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Music Quizzes
Think you know your Beatles from your Stones?
Can you beat your friends' scores?
Average Score: 8
100% knows the answer to this question:
"Which band's drummer had the nickname "Ringo"?
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Music Quiz
Can you do better than a 5 out of 10?
Average Score: 7
100% knows the answer to this question:
"What is a group of four performers called?
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Music Quiz
Can you do better than a lousy 6?
Average Score: 10
100% knows the answer to this question:
"What couldn't The Rolling Stones get any of in their hit of 1965?
"
Music Quiz
Can you do better than her 5 out of 10?
Average Score: 9
99% knows the answer to this question:
"According to grammar expert Irving Fisher what song's title would have been correct if it had been in response to the question, "Have you no bananas?"
"
Quiz about Music
Only real music fans score a decent 7+
Average Score: 9
100% knows the answer to this question:
"Which of these was a hit single for The Mamas & the Papas in 1966?
"
How often do you listen to music?
HARD Music Quiz
Average Score: 7
100% knows the answer to this question:
"Coolio reworked Stevie Wonder's "Pasttime Paradise," turning it into what song?
"
Very Hard Music Quiz
10 Questions
Average Score: 6
100% knows the answer to this question:
"What classic song contains the lyrics "And the forests will echo with laughter.."?
"
Music Quiz
How often do you listen to music?
Average Score: 8
100% knows the answer to this question:
"Which of these groups would you most associate with Diana Ross?
"
Music Quiz
Have you ever been to a concert?
Average Score: 9
99% knows the answer to this question:
"Davy Jones was the lead singer in which band?
"
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Science Quizzes
Nobody can score higher than a lousy 5
Science Quiz
Average Score: 7
90% knows the answer to this question:
"What do we call the teeth we grind our food with?
"
Quiz For Scientists
Have you ever entered a science fair?
Average Score: 9
100% knows the answer to this question:
"Alexander Graham Bell and his assistant were the first two people to use this invention, but First Lady Lucy Hayes was the third. What?
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Science Quiz
Are you smarter than a astronaut? Prove us by score higher than a 6
Average Score: 10
100% knows the answer to this question:
"What protective layer surrounds Earth?
"
HARD Science Quiz
We hope you're smart enough to score a 7+
Average Score: 6
100% knows the answer to this question:
"HP and IBM are brands of which product?
"
Are you a Science Expert?
Prove it in the comments below
Average Score: 9
99% knows the answer to this question:
"What property is a measurement of how hot or cold something is?
"
Science Quiz
Nobody can score a perfect 10
Average Score: 10
100% knows the answer to this question:
"In weather terms, what is the opposite of heat?
"
Try scoring a 10 out of 10
10 HARD Science Questions
Average Score: 7
100% knows the answer to this question:
"John Luther Jones of Cayce, Kentucky, has a special place in railway lore. By what name is he better known?
"
Science Quiz
We really think scoring higher than a 6 is impossible
Average Score: 9
96% knows the answer to this question:
"When introduced by Raytheon, what appliance was originally called the Radar Range?
"
Hard Science Quiz
Tell us if you scored an impossible 10
Average Score: 8
100% knows the answer to this question:
"The word "lunar" means something related to what?
"
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Who Sang Quizzes
60's music quiz
You won't score a perfect 10
Average Score: 8
100% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
"
Do You Know Who Sang These Songs?
Try scoring a 6+
Average Score: 8
100% knows the answer to this question:
"Who sang the famous song "Pinball Wizard" (1969)?
"
60's music quiz
You won't score a perfect 10
Average Score: 8
92% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
"
Can you score a 6 or better ?
Do you remember who sang this song?
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Thriller" (1983)
"
60s music quiz
You won't score a perfect 10
Average Score: 8
100% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
"
Who Sang These Songs?
Will you be able to do a better job?
Average Score: 10
100% knows the answer to this question:
"Who sang the famous song "Peggy Sue" (1962)?
"
For people who are older than 40 this is going to be a hard quiz!
Who sang these songs from the 90s?
Average Score: 14
95% knows the answer to this question:
"Who sang the famous song "The Show Must Go On" (1991)
"
Who Sang These Songs?
No one knows more than 5 songs in this quiz!
Average Score: 7
95% knows the answer to this question:
"Who sang the famous song "Graceland" (1986)?
"
Who sang these songs?
10 song questions
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Take A Chance On Me" (1977) ?
"
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Food & Beverage Quizzes
Unknown Fruit Quiz
No one scores a 6 or more in this unknown fruit quiz!
Average Score: 7
100% knows the answer to this question:
"What is the name of this unknown fruit?
"
Challenging Food & Beverages Quiz
We challenge you to beat his score!
Average Score: 8
100% knows the answer to this question:
"Pop tarts can be heated in which of the following?
"
Challenging Food Quiz
10 HARD questions about food & beverages
Average Score: 6
100% knows the answer to this question:
"if you order Chateaubriand, what type of meat will you be served?
"
Food Quiz
10 questions but you won't get them all correctly!
Average Score: 10
100% knows the answer to this question:
"Grapes come in what?
"
Food and Beverage Quiz
Who is able to score higher than a lousy 4? Share if you did
Average Score: 9
100% knows the answer to this question:
"Which animal's meat is referred to as mutton, particularly when the animal is an adult?
"
10 fun questions about food you probably can't answer
Food Quiz
Average Score: 9
100% knows the answer to this question:
"What food group do oatmeal, brown rice and whole wheat belong to?
"
Food and Beverage Quiz
10 questions but you won't get them all correctly!
Average Score: 9
100% knows the answer to this question:
"What second largest island in the Mediterranean are canned herrings named for?
"
Test Your Culinary Knowledge with this Delicious Quiz
Show Off your result in the comments
Average Score: 10
100% knows the answer to this question:
"A cucumber preserved in vinegar or salt is called what?
"
Challenging Food Quiz
We bet you're not a true chef!
Average Score: 9
98% knows the answer to this question:
"Known for its sweet, deep-red flesh, what orange mutation probably first appeared in 17th century Sicily?
"
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General Knowledge Quizzes
Mixed Trivia Quiz
Who is able to get a perfect 10? Show off in the comments
Average Score: 8
100% knows the answer to this question:
"Which choice is most related to "neon"?
"
Challenging Knowledge Quiz
Are you smart enough to score a 7+?
Average Score: 8
99% knows the answer to this question:
"Simon & Garfunkel had a hit about which woman in 1968?
"
Survival Mode
You probably don't survive this one!
Average Score: 11
100% knows the answer to this question:
"The Dancing Dolls, who gained popularity through their videos on YouTube, are from which country?
"
Fun Trivia Quiz
But you won't even get 5 right!
Average Score: 8
100% knows the answer to this question:
"The Great Barrier Reef is situated off the coast of what country?
"
Unbeatable Knowledge Quiz
You will fail this quiz!
Average Score: 7
100% knows the answer to this question:
"What sport were the five ballet positions inspired by?
"
Incredibly Hard Quiz
Try if you dare
Average Score: 7
100% knows the answer to this question:
"What corporation owns the mining vessel infected with the alien menace in Alien?
"
Do you know the answer?
Impossible General Knowledge Quiz
Average Score: 8
100% knows the answer to this question:
"What learning disorder does Ozzy Osbourne suffer from?
"
Mixed Trivia Quiz
We hope you're smart enough!
Average Score: 8
99% knows the answer to this question:
"Before Delhi, what was India's capital city?
"
General Knowledge Quiz
We dare you to do better than a 6 out of 10. It won't happen!
Average Score: 8
100% knows the answer to this question:
"What trendy 50s fashion item did Elvis and Carl Perkins warn you to lay off of?
"
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Literature Quizzes
Literature Quiz
Who of our quizzers can get a perfect 10? Share below!
Average Score: 8
100% knows the answer to this question:
"What classic novel did D. H. Lawrence write in 1928?
"
Literature Quiz
How much knowledge have you stored in you brain about Literature?
Average Score: 7
96% knows the answer to this question:
"What word means to award compensation to?
"
Literature Quiz
Who is your favorite author?
Average Score: 8
99% knows the answer to this question:
"In "Robinson Crusoe", where is Robinson Crusoe stranded?
"
Tell us, what do you really know about literature?
We think not enough to get more than 4 answer correctly!
Average Score: 6
100% knows the answer to this question:
"What John Spyri story is about a girl who lives in the Alps?
"
Literature Test
What did you score? Share below if you dare!
Average Score: 8
100% knows the answer to this question:
"Who wrote the comedy "Midsummer Night's Dream"?
"
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Movie Quizzes
Movie Quiz
What is the last movie you have seen?
Average Score: 8
97% knows the answer to this question:
"Which of these actresses is regarded as a sex symbol of the 1960s?
"
Movie Quiz
Can you score perfect 10?
Average Score: 6
100% knows the answer to this question:
"What is Whoopi Goldberg's character doing for a living before posing as a nun after witnessing a mob killing?
"
Only 10% can complete all 10 of these movie titles
Movie Title Quiz
Average Score: 10
100% knows the answer to this question:
"Planet of the …..
"
Movies: 10 Daunting Questions
We hope you have watched enough movies
Average Score: 9
100% knows the answer to this question:
"The film "Jack the Giant Slayer" is a retelling of what tale?
"
Movie Quiz
Click to start this quiz
Average Score: 8
99% knows the answer to this question:
"How would you categorise the film The Texas Chainsaw Massacre?
"
Movie Quiz
Can you top a 6 out of 10
Average Score: 8
98% knows the answer to this question:
"Climb Every Mountain is from which film musical?
"
Crazy Quiz About Movies!
Nobody will be able to score a 7+
Average Score: 9
100% knows the answer to this question:
"Finish this famous movie title, "All About ___ ".
"
how often do you go to the movie theater?
Movie Quiz
Average Score: 7
99% knows the answer to this question:
"Marilyn Monroe starred in which of these classic movies?
"
Movie Quiz Challenge
Think you have what it takes to do better than me?
Average Score: 8
99% knows the answer to this question:
"What type of film is "Kung Fu Panda 2"?
"
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Math Quizzes
Challenging Math Quiz
You aren't smart enough to score a solid 10!
Average Score: 8
100% knows the answer to this question:
"76 plus 36 gives which result?
"
No one can score a 7 or better
Math Test
Average Score: 9
97% knows the answer to this question:
"Which is the largest number?
"
Math Quiz
We challenge you to score an 8+
Average Score: 9
99% knows the answer to this question:
"What is twenty times twenty?
"
Math Quiz
Are you real mathelete? Let us know below!
Average Score: 8
100% knows the answer to this question:
"Which is the correct spelling?
"
Math Quiz
Only those who are good with numbers stand a change!
Average Score: 8
99% knows the answer to this question:
"What is the total of 25 + 53 + 32?
"
Mathematics Quiz
What did you score? Let us know in the comments
Average Score: 7
100% knows the answer to this question:
"Cans of soup are 45p. If I buy 3 cans on a 3 for 2 offer, what is the real price per can?
"
Math Quiz
Only those who are good with numbers stand a chance!
Average Score: 8
98% knows the answer to this question:
"What is 10% of 1,000?
"
HARD Math Quiz
Do you know the answer to this riddle?
Average Score: 8
100% knows the answer to this question:
"What is 33 plus half a century?
"
Math Quiz
Absolutely no one scores higher than a 5
Average Score: 8
100% knows the answer to this question:
"What is an estimate?
"
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Who sang these famous pop songs?
Movies Quiz
Extremely Hard History Quiz, most people score only 3 out of 10.