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Question 1 of 10

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?

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?

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?

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?

Who Sang Quizzes

Who Sang These Songs?

Did you know more than 6 songs?
Who Sang These 90s Eurodance Songs?

What did you do in the 90s?
Who's the Voice Behind the Song?

We hope you know at least 6!
Who Sang These Songs?

10 songs, do you know the artist or band?
Who sang?

Are you a Night Owl?
Who Sang These Rock 'n' Roll Songs?

How many Rock 'n' Roll songs did you know?
Who sang?

How many could you name? Let us know below!
Who Sang These Songs?

Can you answer these 10 music questions correctly?
Who Sang These Songs?

Did you know more than 7 songs?
Who sang these songs?

10 questions
Which artists gave us these 70s & 80s classics?

Let us know your score!
Who is able to name all 10 artists!

Let us know if knew all these classics

History Quizzes

History Quiz

Tell us if you are a true historian
History Quiz

Do you have what it takes?
History Quiz

Are you celebrating a perfect 10? Please tell us!
Can you beat me in this History Quiz?

Let us know if you did
10 History Questions

Who knows enough for a 10/10
History Quiz

What did you score?
Sudden Death Quiz

10 history questions
Calling All History Buffs!

Can You Beat the Experts?
History Quiz

Sorry if you didn't score a 6 or higher
Quiz on historical events.

Please share your score no matter how low or high
History Quiz

Tell us your score below
Think you know History?

Show us your score if you dare

Geography Quizzes

Geography Quiz

Can you handle this one?
Geography Quiz

Can you beat the geographer?
Geography Quiz

What’s your next holiday destination?
Geography Quiz

You're invited!
10 Question About Planet Earth

Did you score a 10? Let us know below!
Hard Geography Quiz

Only for people with a lot of knowledge!
Geography Quiz

Thumbs up when you score a 10/10
Play This Geography Quiz Now!

It's going to be impossible to score a 6+
Geography Quiz

Did you find your way to the last question?
Geography Quiz

Think you can find your way?

Music Quizzes

New Music Trivia

Can you answer all music questions correctly?
Quiz about Music

Only real music fans score a decent 7+
Music Quiz For Intelligent People

Are you smart enough?
Music Quiz

Have you ever been to a concert?
Impossible Music Quiz

This quiz is way too hard for you!
Music Quiz

Can you do better than a 5 out of 10?
We bet you aren't a musical genius

Music Knowledge Quiz
Challenging Music Quiz

We challenge you to do better than a 5 out of 10
How often do you listen to music?

HARD Music Quiz
Play Music Quiz

We bet you're not a musician!
10 famous songs, 10 unfinished titles

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HARD Music Quiz

Let us know your score in the comments below

Science Quizzes

Science Quiz

Can you top a hard 6? Prove us!
HARD Science Quiz

We hope you're smart enough to score a 7+
Which or your friends is better than you?

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Science Quiz

10 hard questions
Science Quiz

We really think scoring higher than a 6 is impossible
Take the tast and share the result with your facebook friends!

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Mixed Trivia Quiz

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Extremely hard science quiz only for the highly intelligent among us

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Prove how much of a scientist you are.

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Science Quiz

Welcome to our fun quiz!
Science Quiz

Can you handle a defeat in this quiz?
Science Quiz

We hope this quiz is not too hard for you

Food & Beverage Quizzes

We think it's Impossible to get a decent score at this food quiz.

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Nobody will score a 10/10 in this food quiz.

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Food & Beverages Quiz

Please share your favorite restaurant in the comments
THIS IS AN EXTREME HARD QUIZ ABOUT FOOD AND BEVERAGE

Do you think you know enough to score a 5+?
Food & Beverages Quiz

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Nobody can score higher than a tasty 6 in this hard quiz!

10 Food and Beverage Questions.
This quiz is not going to be easy!

Challenging Food & Beverages Quiz
Food & Beverages Quiz

Are you able to score a perfect 10? Share if you did!
Food & Beverages Quiz

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Only food critics will be able to score a decent score in this quiz.

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Food & Beverage Quiz

Are you a real chef?
Food & Beverage Quiz

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General Knowledge Quizzes

10 Questions Everybody Should Know

You are smarter with an 8 or higher
Brain-Teasing Trivia Questions

We wonder what you will score
Impossible Knowledge Quiz

Dare to share your score?
General Knowledge Quiz

Are you up for the challenge?
10 Hard Questions

Can you solve this question?
Knowledge Quiz: Sudden Death Edition

Will you fail before question 10?
'Quiz on General Knowledge'

We bet you won't score higher than a 4
Mixed Knowledge Test

Are you a genius?
Enjoy this Quiz

And let us know your score below
Challenging Knowledge Quiz

Nobody nails this quiz
Challenging Knowledge Quiz

This quiz is way out of your league!
10 Challenging Questions

We are very sorry for these hard questions

Literature Quizzes

Quiz Request Of The Week: Literature

What quiz would you like to see next week?
Literature Quiz

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Literature Test

What did you score? Share below if you dare!
General Trivia

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10 Questions about Literature, very hard

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General Trivia

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Can you own this Literature quiz? Then share with your friends!

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Who wrote these books?

Play if you think you can tell us!
Literature Quiz

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Test how much of knowledge about Literature you have stored in your brain!

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Do you like books? Then this hard quiz about books and their writers!

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Literature Quiz

Play it here.

Movie Quizzes

90% can't even score a 6 out of 10

Movie Quiz
10 Hard Movie Questions

What is the last movie you have seen?
Fun Quiz About The Movies

Please tell us your score if you're proud about it
It's highly doubtful you can complete even half of these movie titles in this quiz.

Movie Quiz
Quiz about Movies

What do you prefer? Series or movies?
Quiz About Movies

What did you score?
We bet you can't even finish half of these movie titles in this quiz

Movie Quiz
Movie Quiz

Can you score perfect 10?
Movie Quiz

Can you top a 6 out of 10
Lights, Camera, Quotes!

Who can get a perfect 10? Share if you did!
Crazy Quiz About Movies!

Nobody will be able to score a 7+
HARD Movie Quiz

Enjoy and share your score below in the comments

Math Quizzes

Mathematics Quiz

Are you a real mastermind in mathematics?
Math Quiz

Only those who are good with numbers stand a chance!
Math Quiz

Are you real mathelete? Let us know below!
Mathematics Quiz

Try to stay on your feet!
Math Quiz

Only those who are good with numbers stand a chance!
SUDDEN DEATH QUIZ

Try to stay on your feet!
Challenging Mathematics Quiz

Prove us if you are a true Mathematics Mastermind!
Math Quiz

Only those who are good with numbers stand a change!
Math Quiz

We challenge you to score an 8+
Challenging Math Quiz

You aren't smart enough to score a solid 10!
Math Quiz

Can You Solve It Without a Calculator?
10 Math Questions

For you to solve