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
Quiz about History
How many retries did you need?
Average Score: 7
100% knows the answer to this question:
"Which of these is a real book release from 2015, the latest in a long running series?
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History Knowledge Quiz
What did you score? Please let everyone know in the comments
Average Score: 8
100% knows the answer to this question:
"How old was Ronald Reagan when he died on June 5, 2004?
"
Quiz About History
We bet you can't even score a simple 5
Average Score: 7
92% knows the answer to this question:
"In February 1950, the secret Police known as the "Stasi" was founded in which country?
"
HARD History Quiz
Only doable with an IQ above 130
Average Score: 8
99% knows the answer to this question:
"A shortage of what, led 1940's women to paint seams on the back of their legs?
"
Play Quiz
Average Score: 8
99% knows the answer to this question:
"Who was the monarch of the United Kingdom in 1977?
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History Trivia Quiz
Scoring higher than a 6 is impossible!
Average Score: 9
100% knows the answer to this question:
"Prince Rainier III of Monaco married which Hollywood actress?
"
Are you educated enough?
History Quiz
Average Score: 6
100% knows the answer to this question:
"Who became the first female prime minister of Great Britain in 1979?
"
Are you educated enough?
History Quiz
Average Score: 7
100% knows the answer to this question:
"Which nation became the 28th member of the European Union in 2013?
"
Do you have a mastermind?
Play if you think you can score a 7+
Average Score: 9
100% knows the answer to this question:
"Indira Gandhi was the leader of which country until 1984?
"
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Geography Quizzes
Are you smarter than this geographer?
Geography Quiz
Average Score: 8
99% knows the answer to this question:
"Which city is a key town for the Muslim, Jewish and Christian faiths?
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Challenging Geography Quiz
We hope you can handle this quiz!
Average Score: 8
98% knows the answer to this question:
"The birthplace of the Olympic games is Olympia, in which country?
"
Geography Quiz
10 questions most people will struggle with
Average Score: 7
93% knows the answer to this question:
"Which best describes the Wailing Wall?
"
Geography Quiz
We challenge you to score an 8+
Average Score: 9
99% knows the answer to this question:
"After whom was the US capital Washington, D.C. named?
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Geography Knowledge Trivia Quiz
Not a single soul will score a 10
Average Score: 8
96% knows the answer to this question:
"The river Nile is located on which continent?
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HARD Geography Quiz
This really is a hard one!
Average Score: 6
100% knows the answer to this question:
"Malta achieved independence from which European country in 1964?
"
What was your last travel destination?
HARD Geography Quiz
Average Score: 6
100% knows the answer to this question:
"Dionysus was the Greek God of what?
"
Geology Quiz - How Much Do You Know?
Test Your Knowledge and See if You're Up to the Challenge
Average Score: 9
98% knows the answer to this question:
"On which body of water will surfers at Newquay catch the wave?
"
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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Music Quizzes
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?
"
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?
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Challenging Music Quiz
We challenge you to do better than a 5 out of 10
Average Score: 8
99% knows the answer to this question:
"Who "stuck a feather in his hat and called it macaroni"?
"
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?
"
Play this music quiz by clicking here
And tell us what you scored. We hope you did good!
Average Score: 9
100% knows the answer to this question:
"Help was a hit song of which band?
"
Challenging Music Quiz
We challenge you to do better than a 5 out of 10
Average Score: 8
99% knows the answer to this question:
"Who "stuck a feather in his hat and called it macaroni"?
"
Challenging Music Quiz
We challenge you to score a 7+
Average Score: 7
100% knows the answer to this question:
"Italian Luciano Pavarotti was part of which music group?
"
Play Music Quiz
We bet you're not a musician!
Average Score: 9
100% knows the answer to this question:
"Which record company was founded in Detroit by Berry Gordy, Jr, a former boxer, who applied many of the business techniques he'd seen working on the Ford assembly line?
"
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.."?
"
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Science Quizzes
Don't bother beating my score
Science Quiz
Average Score: 7
84% knows the answer to this question:
"What do we call the teeth we grind our food with?
"
Nobody can score a perfect 10
Quiz for Scientists
Average Score: 10
100% 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?
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Science Sudden End Quiz
Only 5 out of 10 will finish this one!
Average Score: 0
99% knows the answer to this question:
"What means of transportation is typically yellow in New York City, but black in London?
"
Hard Science Quiz
We think this quiz is way too hard for you!
Average Score: 8
100% knows the answer to this question:
"Earthquakes sometimes cause "tidal" what?
"
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?
"
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?
"
HARD Science Quiz
Who can beat the average score?
Average Score: 8
100% knows the answer to this question:
"What is a change in the form of a species over time called?
"
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
Are you worthy of the respect?
Average Score: 8
99% knows the answer to this question:
"What growth do pine trees have where most other trees have leaves?
"
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Who Sang Quizzes
Who Sang These Songs?
No is able to score higher than a 6
Average Score: 9
97% knows the answer to this question:
"Who sang the famous song "Starman" (1972)
"
Who Sang These Songs?
Nobody knows more than 4 songs
Average Score: 7
88% knows the answer to this question:
"Who sang the famous song "Rock With You" (1979)?
"
Who Sang These Songs From The 70s?
10 hard questions
Average Score: 8
98% knows the answer to this question:
"Who sang the famous song "Fernando" (1975) ?
"
Who Sang These Songs?
Did you know these songs?
Average Score: 9
98% knows the answer to this question:
"Who sang the famous song "Lay Lady Lay" (1969)
"
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)?
"
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)?
"
Who Sang These Songs?
No one knows more than 5 songs in this quiz!
Average Score: 8
93% knows the answer to this question:
"Who sang the famous song "Graceland" (1986)?
"
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)
"
60's music quiz
You won't score a perfect 10
Average Score: 8
97% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
"
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Food & Beverage Quizzes
Food Quiz
What is your favorite food?
Average Score: 7
99% knows the answer to this question:
"On what holiday do children traditionally dress in costumes and walk door-to-door to gather candy?
"
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?
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Food & Beverages Quiz
Did you top a 6? Please tell us!
Average Score: 8
100% knows the answer to this question:
"Where would you find mussels?
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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?
"
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?
"
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 and Beverage Quiz
10 questions but you won't get them all correctly!
Average Score: 9
100% knows the answer to this question:
"By what name is Beijing kao ya better known in the West?
"
Food Quiz
What's on your favorite sandwich?
Average Score: 10
99% knows the answer to this question:
"What dish did Lemuel Benedict invent in 1894, as a hangover cure?
"
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General Knowledge Quizzes
General Knowledge Quiz
Enjoy and please share your score below
Average Score: 8
98% knows the answer to this question:
"What is a 9 letter word meaning "to spend sparingly"?
"
How Did You Do Compared to My Score of 5/10?
General Knowledge Quiz
Average Score: 7
95% knows the answer to this question:
"52 Americans were held hostage for 444 days in which country in 1980-81?
"
Hard Mixed Trivia Quiz
This quiz is specially made for you!
Average Score: 8
98% knows the answer to this question:
"What is 500 + 30 + 7?
"
Quiz testing general knowledge
Can you beat my score?
Average Score: 7
100% knows the answer to this question:
"30x31÷30 equals what number?
"
Are you a smart senior and can you nail this quiz?
Enter Here
Average Score: 8
100% knows the answer to this question:
"Which of these fortresses is not in Europe?
"
10 Knowledge Questions
Can you answer them correctly?
Average Score: 8
100% knows the answer to this question:
"What is the post code known as in America?
"
Take a coffee and relax with this Knowledge Quiz!
Click to play
Average Score: 9
98% knows the answer to this question:
"The description "the magic kingdom" relates best to which of these landmarks?
"
Mixed Knowledge Quiz
Will you be able to score a high 9?
Average Score: 6
100% knows the answer to this question:
"What is Kiefer Sutherlands Character called in "24"?
"
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"?
"
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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
We challenge you to score an 8+
Average Score: 7
99% knows the answer to this question:
"Which one of these means an animal's poisonous fluids?
"
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"?
"
Literature Quiz
How much knowledge have you stored in your brain about Literature?
Average Score: 6
84% knows the answer to this question:
"Which king said "A horse, a horse! my kingdom for a horse!"?
"
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Movie Quizzes
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?
"
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 …..
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10 Hard Movie Questions
What is the last movie you have seen?
Average Score: 7
98% knows the answer to this question:
"Which film star is married to Goldie Hawn?
"
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?
"
Movie Quiz
Are you going to score a perfect 10?
Average Score: 6
100% knows the answer to this question:
"What romantic movie takes place on a doomed cruise ship?
"
Crazy Quiz About Movies!
Nobody will be able to score a perfect 10
Average Score: 5
84% knows the answer to this question:
"In which movie did Brad Pitt play the role of Tyler Durden?
"
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?
"
Movie Quiz
Leave your favorite Horror movie below in the comments
Average Score: 6
98% knows the answer to this question:
"Which movie is about a bored married couple surprised to learn that they are both assassins?
"
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Math Quizzes
Test Your Math Knowledge
Absolutely nobody scores a solid 10
Average Score: 9
98% knows the answer to this question:
"What number when added to 1661, gives 2723?
"
Nobody will score higher than a 4
Because nobody is as smart as Einstein!
Average Score: 6
85% knows the answer to this question:
"What is a polynomial with two terms called?
"
Math Quiz
We hope you can do better than a simple 5
Average Score: 9
99% knows the answer to this question:
"180+124+68 equals what number?
"
Mathematics Quiz
Are you a real mastermind in mathematics?
Average Score: 7
100% knows the answer to this question:
"It was 13 degrees this morning and the temperature dropped 12 degrees, what is the temperature now?
"
Math Quiz
Please let us know your score below
Average Score: 9
99% knows the answer to this question:
"What is 18 doubled?
"
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?
"
Math Quiz
Only those who are good with numbers stand a change!
Average Score: 9
100% knows the answer to this question:
"What is 123 times 4?
"
Math IQ Test
Do you know the answer?
Average Score: 9
100% knows the answer to this question:
"If it snows 1 inch per hour for 2 days, how many inches of snow is that?
"
Challenging Mathematics Quiz
Prove us if you are a true Mathematics Mastermind!
Average Score: 8
99% knows the answer to this question:
"What is 0.6 as a percentage?
"
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Who sang these songs from the 20s?
Extremely Hard History Quiz, most people score only 3 out of 10.