Difficult Logic Puzzles Trivia

1.

  Edgy Grammar and Reason    

Multiple Choice

 5 Qns

Human reasoning and language comprehension are closely related capacities. This quiz poses some truly difficult problems - think about them carefully. The answers have stumped many great minds, but I assure you they are correct!

Impossible, 5 Qns, xaosdog, Aug 28 20

Impossible
xaosdog
Aug 28 20
92405 plays

2.

  Brain Bogglers    

Multiple Choice

 5 Qns

Ah, the first of the ever-growing series of Brain Bogglers. Good luck and have fun!

Difficult, 5 Qns, sprinkles, Jan 06 14

Difficult
sprinkles
80707 plays

3.

  Brain Bogglers 7    

Multiple Choice

 5 Qns

Have fun with these! Good luck!

Tough, 5 Qns, sprinkles, Oct 22 18

Tough
sprinkles
Oct 22 18
63309 plays

4.

  Brain Bogglers 2    

Multiple Choice

 5 Qns

Good luck and have fun!

Tough, 5 Qns, sprinkles, Jun 13 23

Tough
sprinkles
Jun 13 23
61593 plays

5.

  Iggy's Logic Quiz    

Multiple Choice

 10 Qns

If you go through this quiz fast, you'll probably get the questions wrong. Take your time and you'll get the questions right.

Difficult, 10 Qns, iggy4, Nov 08 21

Difficult
iggy4
Nov 08 21
18729 plays

6.

  Iggy's Logic Quiz 5    

Multiple Choice

 10 Qns

This quiz is mostly logic and common sense, although you do need legitimate math knowledge for some of the questions.

Very Difficult, 10 Qns, iggy4, Aug 19 08

Very Difficult
iggy4
15312 plays

7.

  Brain Bogglers 8    

Multiple Choice

 5 Qns

It's been a while but here is the eighth installment to my ever so challenging brain teaser series. Good luck and have fun!

Difficult, 5 Qns, sprinkles, Oct 30 04

Difficult
sprinkles
28025 plays

8.

  Some Mensa-Style Questions    

Multiple Choice

 5 Qns

These questions follow a similar format to Mensa-style logic questions. See how you do?

Difficult, 5 Qns, TemplarLLM, May 14 06

Difficult
TemplarLLM
24855 plays

9.

  Tough Logic Problems    

Multiple Choice

 5 Qns

Here are a few questions that will make you want to pull your hair out!

Tough, 5 Qns, peachesbns, May 20 13

Tough
peachesbns
26630 plays

10.

  It's the Cat's Meow    

Match Quiz

 10 Qns

The term "cat's meow", meaning something brilliant or excellent, was coined by the US cartoonist Tad Dorgan. In this quiz, you just need to use some logic to correctly position ten words that could easily be replaced by an exclamation of "cat's meow"!

Tough, 10 Qns, Fifiona81, Jun 08 17

Tough
Fifiona81
1830 plays

11.

  Puzzling Paradoxes    

Multiple Choice

 10 Qns

Throughout history, countless people have spent countless hours thinking about and discussing paradoxical questions. Now it is your turn to do that.

Tough, 10 Qns, deputygary, Feb 12 17

Tough
deputygary
4491 plays

12.

  Pizza Party On Algebra Avenue    

Multiple Choice

 5 Qns

Would you like to come to our pizza party on Algebra Avenue? Great! Just help me with my terrible memory for numbers. All you will need will be simple algebra and some logic.

Impossible, 5 Qns, VickiSilver, Apr 20 07

Impossible
VickiSilver
11250 plays

13.

  True or False Quiz About This Quiz Variation    

Multiple Choice

 20 Qns

A variation on Quizzes about themselves, this quiz has all true or false answers. This quiz will take a long time to complete. You have been warned.

Tough, 20 Qns, niffweed17, Jan 31 04

Tough
niffweed17
7404 plays

14.

  Reindeer Races    

Match Quiz

 10 Qns

Opening your Christmas stocking, you find a book of Christmas puzzles, turn to the first page and immerse yourself in a logic problem. It's about the results of Santa's reindeers' latest speed test, which included a potential new recruit to the herd...

Tough, 10 Qns, Fifiona81, Jan 10 18

Tough
Fifiona81
Jan 10 18
703 plays

15.

  Some Logical Maths    

Multiple Choice

 10 Qns

Let's see how well you use your brains...

Difficult, 10 Qns, VARDA, Jan 01 16

Difficult
VARDA
12529 plays

16.

  Brain Bogglers 6    

Multiple Choice

 5 Qns

A couple more brain bogglers. Good luck and have fun!

Difficult, 5 Qns, sprinkles, Aug 28 20

Difficult
sprinkles
Aug 28 20
21231 plays

17.

  Iggy's Logic Quiz 8    

Multiple Choice

 10 Qns

Use logic to eliminate scenarios where there are contradictions, and then choose a scenario where there are no contradictions. Note that each question is independent, so the answers of previous questions have nothing to do with future questions.

Difficult, 10 Qns, iggy4, Oct 14 16

Difficult
iggy4
1611 plays

18.

  Iggy's Logic Quiz 4    

Multiple Choice

 10 Qns

This quiz is mostly logic and common sense, although you do need legitimate math knowledge for some of the questions.

Very Difficult, 10 Qns, iggy4, Jan 06 12

Very Difficult
iggy4
6248 plays

19.

  May the Fourth be With You    

Multiple Choice

 10 Qns

Three letters are having an adventurous moment, but they are sadly missing the fourth (and exactly the fourth) to complete their party. Can you help them find their missing companion?

Tough, 10 Qns, WesleyCrusher, Mar 21 12

Tough
WesleyCrusher
1755 plays

20.

  Edgy Grammar And Reason II    

Multiple Choice

 5 Qns

Back despite popular demand -- a second quiz testing high-level reasoning and language processing from the fetid yet fertile paws of the xaosdog.

Very Difficult, 5 Qns, xaosdog, Dec 01 12

Very Difficult
xaosdog
11431 plays

21.

  Roundabout Math    

Multiple Choice

 10 Qns

This is a quiz where the answers are meant to be unravelled from the word problem before they are solved. Good ;luck, some of them can be pretty tricky!

Difficult, 10 Qns, treefinger, Jul 27 18

Difficult
treefinger
Jul 27 18
2135 plays

22.

  Lost in Translation    

Multiple Choice

 10 Qns

Estimated Time: 20 min plus. In a secret language, cardinal numbers have been coded. The following equations given involve whole numbers only and are all true. Based on the information, solve the other equations. Only the four basic operations are used.

Tough, 10 Qns, angikar, Oct 26 15

Tough
angikar
1408 plays

23.

  The Sum of All Fears    

Multiple Choice

 10 Qns

Use logic and a bit of maths to work out the value assigned to each of these 'fears'. You'll then be able to answer the questions and complete the quiz!

Tough, 10 Qns, Fifiona81, Aug 10 18

Tough
Fifiona81
Aug 10 18
355 plays

24.

  Hallowe'en Party    

Multiple Choice

 15 Qns

A challenge for Halloween! Piece together who wore what costume and when he or she arrived. Read the premise & clues carefully before solving the puzzle. Use pencil and paper to make a grid/chart to keep track. Take your time. Good luck.

Tough, 15 Qns, gracious1, Aug 23 19

Tough
gracious1
Aug 23 19
214 plays

25.

  Iggy's Logic Quiz 6    

Multiple Choice

 10 Qns

You need to use some sort of logical reasoning to answer my questions. If some of the questions seem impossible, take your time and you might notice logic flaws to eliminate possible answers.

Impossible, 10 Qns, iggy4, Jul 16 12

Impossible
iggy4
2885 plays

26.

  Where Did the Five Friends Go?    

Multiple Choice

 10 Qns

This is my first try at a Logic Grid puzzle, so it might not need a pencil and paper. Working it out on paper does help though.

Tough, 10 Qns, BxBarracuda, Feb 04 09

Tough
BxBarracuda
1279 plays

27.

  Iggy's Logic Quiz 2    

Multiple Choice

 10 Qns

Like my last quiz, you should take your time on the questions.

Difficult, 10 Qns, iggy4, Feb 10 06

Difficult
iggy4
4510 plays

28.

  Chaos, Challenge, Logic, Order    

Multiple Choice

 10 Qns

The answers in this quiz are the numbers 1 to 10, each appearing once. In the chaos of over 3 million options, I challenge you to apply healthy logic and simple math in order to find the unique solution of this puzzle. Allow up to 1 hour. Good luck!

Very Difficult, 10 Qns, gentlegiant17, Mar 19 08

Very Difficult
gentlegiant17
2992 plays

29.

  Stocking Fillers    

Multiple Choice

 10 Qns

Luckily the process of opening a stocking on Christmas morning does not usually involve any logical brain exercises. However (particularly for anyone who thinks this is a shame) a stocking related logic problem is now available!

Tough, 10 Qns, Fifiona81, Oct 27 16

Tough
Fifiona81
211 plays

30.

  Much Ado About Shakespeare    

Multiple Choice

 10 Qns

The Quizzical Shakespeare Company's latest performances caused some consternation - they'd mixed up their plays and some of the Bard's most famous characters ended up making unexpected appearances. Use some logic to work out where they went wrong...

Tough, 10 Qns, Fifiona81, Aug 12 15

Tough
Fifiona81
163 plays

31.

  Mixed Logic    

Multiple Choice

 10 Qns

Here are some questions to test your logic. (Living in Norway, English is not my native language. Please, let me know if any of the questions or answers should be phrased differently)

Impossible, 10 Qns, mikkemus1, Oct 20 21

Impossible
mikkemus1
Oct 20 21
10361 plays

32.

  Iggy's Logic Quiz 7    

Multiple Choice

 10 Qns

Like my other logic quizzes, this quiz has word problems where you figure a conclusion based on contradictions from other assumptions.

Very Difficult, 10 Qns, iggy4, Feb 16 13

Very Difficult
iggy4
484 plays

33.

  90 Percent of the Game is Half-Mental    

Multiple Choice

 10 Qns

Yogi Berra was known for his illogical sayings like "90% of this game is half mental". In honor of Yogi, here is a baseball themed logic puzzle that is 100% mental.

Average, 10 Qns, Joepetz, Apr 16 17

Average
Joepetz
498 plays

34.

  To Tell the Truth- Funtrivia Style    

Multiple Choice

 10 Qns

Welcome panel! To play this version of 'To Tell the Truth', you must determine which out of four contestants is the real Jack Gordon. Read through all the questions first. You'll want to make a chart. Good luck!

Very Difficult, 10 Qns, pjbeliever13, May 01 23

Very Difficult
pjbeliever13
May 01 23
3919 plays

35.

  Iggy's Logic Quiz 3    

Multiple Choice

 10 Qns

You may be smarter than you think. Take your time and figure out the questions.

Very Difficult, 10 Qns, iggy4, Jul 01 05

Very Difficult
iggy4
3755 plays

36.

  The Mini Treasure Hunt!    

Multiple Choice

 10 Qns

Welcome to the treasure hunt! Each question does not match the answer; instead, each one of the 10 questions is a clue! By design, this quiz cannot be done in order. The Magic Word Candidates Are: Oblivion, Wordsmith, and (Wheat)

Difficult, 10 Qns, klavierstueck, Aug 18 21

Difficult
klavierstueck
Aug 18 21
4123 plays

37.

  Shakespeare Is Dead!    

Multiple Choice

 10 Qns

Shakespeare has been murdered and you must solve the crime. Both your skills of logic and knowledge of history will be tested.(Paper and pencil suggested)

Very Difficult, 10 Qns, McAngus, Apr 26 12

Very Difficult
McAngus
355 plays

38.

  Who Went to See Which Movies How Often?    

Multiple Choice

 10 Qns

Five people see six movies, but you'll have to use the given clues and logic to figure out who saw which movies and how often.

Tough, 10 Qns, napierslogs, Jun 27 16

Tough
napierslogs
174 plays

39.

  Liars, Scoundrels, and Logicians    

Multiple Choice

 10 Qns

There is a strange land with a surprisingly high crime rate, but the inhabitants are more often compelled to always tell the truth or a lie, rather than look out for their own well-being. Can you use your logical wits to survive this strange land?

Difficult, 10 Qns, qrayx, Mar 08 19

Difficult
qrayx
Mar 08 19
186 plays

40.

  Number Nightmare    

Multiple Choice

 10 Qns

Exactly nine of these answers are positive two digit base-10 integers. No answer is repeated. There is only one possible set of correct answers that does not violate any of these rules or statements made in the questions.

Impossible, 10 Qns, JellyTrollMorton, Aug 08 06

Impossible
JellyTrollMorton
1973 plays

41.

  Is it Sufficient !    

Multiple Choice

 10 Qns

You don't have to tell me the answer; just whether one can get an answer from the given information. I will give you a question followed by two statements A & B (It is important to note that these two statements NEED NOT be complementary to each other)

Difficult, 10 Qns, ace_sodium, Jan 22 18

Difficult
ace_sodium
Jan 22 18
4749 plays

42.

  Mixed Logic 3    

Multiple Choice

 10 Qns

Here are yet some more questions to test your logic. (Living in Norway, English is not my native language. Please, let me know if any of the questions or answers should be phrased differently.)

Impossible, 10 Qns, mikkemus1, Jul 28 05

Impossible
mikkemus1
8184 plays

43.

  Puzzle Masochists Wanted    

Multiple Choice

 10 Qns

This is a challenging, recursive puzzle based upon a set of simple instructions to follow. How fast can you solve it?

Very Difficult, 10 Qns, Omakase, Jul 18 12

Very Difficult
Omakase
2281 plays

44.

  Roundabout Math 2    

Multiple Choice

 10 Qns

These problems, as with the previous version of Roundabout Math, are meant to be unraveled before you solve them. They are heavier on logic and problem solving than math. All numbers are written as numerals, not words. Good Luck!

Impossible, 10 Qns, treefinger, Dec 21 07

Impossible
treefinger
1040 plays

45.

  ASA Quiz About This Quiz 4    

Multiple Choice

 10 Qns

An easy one for a change. Every answer will be based on the other answers supplied in the quiz.

Tough, 10 Qns, ASA, Sep 21 23

Tough
ASA
Sep 21 23
6713 plays

46.

  ASA Quiz About This Quiz 2    

Multiple Choice

 10 Qns

Another quiz where your answers depend on your other answers.

Very Difficult, 10 Qns, ASA, Sep 10 06

Very Difficult
ASA
3833 plays

47.

  Do You Know The Alphabet?    

Multiple Choice

 10 Qns

How well do you know the alphabet? In this quiz, I will give you letters in no significant order, and you must guess the letter that is missing from the set. The grouping may have to do with the shape, sound, or usage of the letters.

Very Difficult, 10 Qns, Archpenguin, Aug 04 06

Very Difficult
Archpenguin
6816 plays

48.

  Puzzles 4 Smarty Pants    

Multiple Choice

 5 Qns

Did you know that 6 is a 'perfect number'? That's because its proper divisors (1,2,3) add up to 6. You can learn this and more when you take the 5 question quiz, Puzzles 4 Smarty Pants.

Impossible, 5 Qns, WeStSpOrTaHoLiC, Apr 04 20

Impossible
WeStSpOrTaHoLiC
Apr 04 20
10052 plays

49.

  ASA Quiz About This Quiz 1    

Multiple Choice

 10 Qns

You need to work out the answers of the other questions to work out the answers to the quiz. There are two possible answers to most of the questions, but you only have to supply one

Very Difficult, 10 Qns, ASA, Sep 10 06

Very Difficult
ASA
1801 plays

50.

  ASA Quiz About This Quiz 3    

Multiple Choice

 5 Qns

Only 5 questions this time. Every answer will be based on the other answers supplied in the quiz.

Difficult, 5 Qns, ASA, Mar 29 24

Difficult
ASA
Mar 29 24
4105 plays