Difficult Science Quiz

Question 1 of 10

Gingivitis is minor but can lead to the more serious periodontitis, affecting what body part?

Question 2 of 10

Joseph Wilbrand invented this in 1863 for use as a yellow dye. But in 1902, it was repurposed to blow stuff up. What is it?

Question 3 of 10

On account of an eerie sound it makes, what is another common name for the spotted hyena?

Question 4 of 10

Sodium hydroxide is NaOH, also called caustic acid. And it's also called something else. What?

Question 5 of 10

Rapid eye movement and slow wave are two deep phases of what activity?

Question 6 of 10

In 1834, what tree's leaf became the official emblem of the St Jean Baptiste Society, now dedicated to Quebec independence instead of Canadian nationalism?

Question 7 of 10

What inventor used to make all employees write an "exceedingly simple" 150-question trivia test so tough even Albert Einstein failed it?

Question 8 of 10

What organ has an insula and four lobes (frontal, parietal, temporal and occipital)?

Question 9 of 10

Space rock that enters the Earth's atmosphere is known as a what?

Question 10 of 10

Canadians would have been really impressed with the nine-foot-long Castoroides ohioensis. What was it?

Who Sang Quizzes

Who Sang These Songs?

We hope you know more than 5 artists

Average Score: 9

27% knows the answer to this question: "Who sang "Jailhouse Rock" (1957)? "
You think you know music?

prove us by naming all artists!

Average Score: 9

67% knows the answer to this question: "Which trumpeter enchanted listeners with "What a Wonderful World" (1967)? "
Can you identify the singer of these songs?

How many songs didn't you know?

Average Score: 7

47% knows the answer to this question: "Who made “Free Fallin’” a hit in 1989? "
Play Quiz

Average Score: 7

61% knows the answer to this question: "Who sang the emotional ballad “Nothing Compares 2 U” (1990)? "
Who Sang These Songs?

Prove us wrong and leave your score in the comments

Average Score: 8

36% knows the answer to this question: "Who sang the song, "Johnny B. Goode" (1958)? "
Which artists gave us these 70s & 80s classics?

Let us know your score!

Average Score: 8

60% knows the answer to this question: "Which Beatle moved us with "My Sweet Lord" (1970)? "

General Knowledge Quizzes

Difficult Knowledge Quiz

You will also fail at question 9

Average Score: 9

35% knows the answer to this question: " "
15 General Knowledge Questions

Did you got to the last question?

Average Score: 0

86% knows the answer to this question: " "
10 Mixed Questions

Drop us a comment when you score a perfect 10

Average Score: 4

48% knows the answer to this question: " "
Knowledge Quiz: Sudden Death Edition

Will you fail before question 10?

Average Score: 0

79% knows the answer to this question: " "
Ultimate Trivia Quiz

Are you ready?

Average Score: 5

80% knows the answer to this question: " "
General Knowledge Quiz

A perfect 10 might surprise you

Average Score: 4

64% knows the answer to this question: " "

Math Quizzes

Math IQ Test

Do you know the answer?

Average Score: 8

62% knows the answer to this question: "If it snows 1 inch per hour for 2 days, how many inches of snow is that? "
Math Quiz

Only those who are good with numbers stand a change!

Average Score: 8

54% knows the answer to this question: "How many feet long is a 100-yard football field? "
Challenging Math Quiz

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

Average Score: 8

51% knows the answer to this question: "76 plus 36 gives which result? "
Math Quiz

We hope you can do better than a simple 5

Average Score: 9

22% knows the answer to this question: "180+124+68 equals what number? "
Math Quiz

Only those who are good with numbers stand a change!

Average Score: 8

44% knows the answer to this question: "What is the total of 25 + 53 + 32? "
Math Quiz

Absolutely no one scores higher than a 5

Average Score: 8

77% knows the answer to this question: "What is an estimate? "