Most of the oxygen in the air is produced by what chemical process?
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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?
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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?
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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?
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Who Sang Quizzes
Can You Name The John Denver Song?
Most people only know 4!
Average Score: 8
97% knows the answer to this question:
"From which John Denver song comes the famous line "All my bags are packed, I'm ready to go"
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Play Quiz
Average Score: 9
36% knows the answer to this question:
"Who performed the hit song “Like a Rolling Stone” (1965)?
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Who Sang These Songs?
Nobody knows more than 4 songs
Average Score: 7
33% knows the answer to this question:
"Who sang the famous song "Rock With You" (1979)?
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Which artists sang these songs?
We bet you can't get more than 5 right
Average Score: 7
92% knows the answer to this question:
"Who sang "I Got You (I Feel Good)" (1965)?
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Who Sang These Legendary Songs?
Most can't name more than 7 artists!
Average Score: 7
45% knows the answer to this question:
"Who sang "In the Midnight Hour" (1965)?
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You Know The Songs.....
but do you know the voice? What did you score?
Average Score: 7
41% knows the answer to this question:
"Who sang the song, "The Twist" (1960)?
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General Knowledge Quizzes
Challenging Knowledge Quiz
Who is able to ace every question?
Average Score: 5
37% knows the answer to this question:
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General Knowledge Quiz
Which question took you the longest to answer?
Average Score: 5
68% knows the answer to this question:
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Difficult Knowledge Quiz
You will also fail at question 9
Average Score: 9
78% knows the answer to this question:
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10 Knowledge Questions
Find out if you have a brilliant mind
Average Score: 6
33% knows the answer to this question:
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Sudden Death Quiz
How many chances did you need?
Average Score: 0
22% knows the answer to this question:
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15 Sudden Death Questions
How far did you get?
Average Score: 0
54% knows the answer to this question:
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Math Quizzes
Mathematics Quiz
Do you know the answer?
Average Score: 9
42% knows the answer to this question:
"How many CD racks does it take to hold 300 CDs if each rack holds 75 CDs?
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Math Quiz
We hope you're smart enough for these questions
Average Score: 8
33% knows the answer to this question:
"If you eat 23 sweets from a tub that contains 687 how many sweets do you have left?
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Math Quiz
Please let us know your score below
Average Score: 9
94% knows the answer to this question:
"What is 18 doubled?
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Mathematics Quiz
Are you a real mastermind in mathematics?
Average Score: 7
32% knows the answer to this question:
"It was 13 degrees this morning and the temperature dropped 12 degrees, what is the temperature now?
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Test Your Math Knowledge
Absolutely nobody scores a solid 10
Average Score: 9
93% knows the answer to this question:
"What number when added to 1661, gives 2723?
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Nobody will score higher than a 4
Because nobody is as smart as Einstein!
Average Score: 6
33% knows the answer to this question:
"What is a polynomial with two terms called?
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