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Difficult Logic Puzzles Quizzes, Trivia and Puzzles
Difficult Logic Puzzles Quizzes, Trivia

Difficult Logic Puzzles Trivia

Difficult Logic Puzzles

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50 quizzes and 455 trivia questions.
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
92417 plays
2.
  Brain Bogglers   popular trivia quiz  
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
80718 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
63318 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
61599 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
18734 plays
6.
  Iggy's Logic Quiz 5   top quiz  
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
15314 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
28027 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
24860 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
26635 plays
10.
  It's the Cat's Meow   popular trivia quiz  
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 editor
1851 plays
11.
  Puzzling Paradoxes   popular trivia quiz  
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
4509 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
11255 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
7415 plays
14.
  Reindeer Races   great trivia quiz  
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 editor
Jan 10 18
707 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
12549 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
21233 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
1618 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
6249 plays
19.
  May the Fourth be With You   popular trivia quiz  
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 editor
1756 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
11434 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
2144 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
1412 plays
23.
  The Sum of All Fears   popular trivia quiz  
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 editor
Aug 10 18
356 plays
24.
  Hallowe'en Party   popular trivia quiz  
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 gold member
Aug 23 19
216 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
1281 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
3000 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 editor
213 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 editor
165 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
10362 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
485 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.
Tough, 10 Qns, Joepetz, Apr 16 17
Tough
Joepetz gold member
502 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
3920 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
3756 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
4133 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)
Difficult, 10 Qns, McAngus, Apr 26 12
Difficult
McAngus
357 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
175 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
2290 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
1041 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 20 24
Tough
ASA
Sep 20 24
6717 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
6822 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
10054 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
4109 plays
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