All Questions

289 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
8
votes
0answers
409 views

April Fool's Enigma

Every year, a famous French youtuber (e-penser) presents his enigma of April Fool, but this year, targeting specifically a group of people who have done particularly well last year, he raised the ...
8
votes
0answers
1k views

3D ring/rope wooden puzzle solution?

I have a Eureka 3d Puzzle G / Model G / Gringo: On the box there are 3 puzzles: Remove the ring Remove the rope Move the ring to the other side While Eureka does not appear to list this puzzle in ...
8
votes
1answer
1k views

Is there another name for this puzzle? (Kyudoku, Nine Find)

Is there another name for this type of puzzle? I can only find two examples of it online: https://www.brainzilla.com/logic/kyudoku/ http://ninefind.com/ In the game you start with a 6x6 grid filled ...
7
votes
0answers
250 views

A Glutton and a Split Check

N, T, A, B are arbitrary constants in this problem. I have only definitively solved the N=1 subproblem, so, if the general problem cannot be solved, I will be satisfied to mark as accepted a solution ...
7
votes
0answers
176 views

Communication via a Rubik's cube

So, I watched The Promised Neverland recently and after exploring a little, I found out that Norman used a 5x5x5 Rubik's cube (aka a professor's cube) to communicate when he was held at the $\Lambda\...
7
votes
1answer
451 views

Sequence Puzzle - First Question of 42

Professor Tera was walking on Connecticut Road, where there are some public restrooms. Tera saw some students standing in a row. They seemed to be playing a game called Evolution. And it looked like ...
7
votes
0answers
279 views

We found text from the year 2040!

Recently, the first surviving examples of text from the ███████████████e discovered! The unearthed artifacts included a collection of rectangular tablets inscribed in the hitherto unknow███████████████...
7
votes
0answers
166 views

Is it possible to create a knot that is locked only when the rope is stretched?

Is it possible to create a knot that is stable/locked when the rope is stretched? When the tension is relived the knot should open.
7
votes
0answers
361 views

Open the French safe

While walking in a small alley in Paris, you come across a safe. The number pad looks like this : There are things on the back of the safe too : "À l'aide du carré 3x3 ci-dessous et des nombres ...
7
votes
0answers
483 views

Zed's Phone: Failure to Communicate

My friend Beto and I constantly buy things for one another. One day, he gave me a strange-looking phone and said it was my birthday gift (My birthday wouldn't be until 3 more months). He said he ...
7
votes
0answers
276 views

What is a Freecell Word™?

This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a word conforms to a special rule, I call it a Freecell Word™. Use the ...
7
votes
0answers
363 views

What causes these signs to follow this relation?

Can you find why does the below relation hold true? Hint 1 Hint 2
7
votes
1answer
162 views

Locked in an alien crypt: Jewels on the floor

Dazed, you slowly regain consciousness. You don’t know how you got here, but one thing is certain – your exploration of this otherworldly planet has reached an ugly end. Trapped in an alien crypt, ...
6
votes
0answers
236 views

Terminator? Nah

Resonate me to leave me whole. Tamper with me to leave me good. Gather me to leave me alone. Trim me to leave me empty. What would happen if you retrieve me then? Subtle Hint:
6
votes
0answers
180 views

Doubling the cube with rational Meccano strips

In three monographs published in 2006, 2008 and 2014 Gerard 't Hooft considered "Meccano mathematics": how to construct specified distances and regular polygons by a rigid system of ideal ...
6
votes
0answers
157 views

Decoding a mystery sequence of falling boulders

I'm trying to unravel the algorithm for an old 1980s game called Wanderer. The game is a simple grid: 16 cells high (all visible in the image) and 40 cells wide (though not all are depicted). In the ...
6
votes
0answers
187 views

There are 49 cards here. Figure out what the seven facedown cards are and what position they're in

So here's the problem "There are 49 cards here. Can you figure out what the seven facedown cards are and what position they're in?" I have tried about everything in my math tool belt to try ...
6
votes
0answers
171 views

Rolling dice in a box

A box containing identical dice that were arranged to have same orientation has a missing die at the center (see figure). The dice moves to the free space for they can change orientation and ...
6
votes
0answers
311 views

Stress Not! - A North Daniels' Puzzle

Beep, beep, beep, beep... No, this was not the sound of D.S.I North Daniels playing miniature cricket on his phone, although that would be a preferable situation to the one he is in now. Unfortunately,...
6
votes
0answers
318 views

Can you crack my cipher?

Can you crack this cipher of mine? Each 6×6 box is a word; therefore there are 26 words. All words are English. The text is read left to right, top to bottom. As might be guessed, the 36 squares per 6×...
6
votes
0answers
117 views

Hand tiling - 4x inflated pentominoes with pentominoes and tetrominos

This is a manual tiling puzzle. Difficulty level always hard to estimate, but I would say a few minutes per solution for an accomplished solver, all the way to just about impossible for someone like ...
6
votes
0answers
130 views

How can I create written logic puzzles with multiple variables and the fewest number of clues?

When I refer to written logic puzzles, I mean those in which, for example, 5 men wearing 5 different colors of aprons are bringing 5 different pies from 5 different cities to 5 different booths in the ...
6
votes
0answers
248 views

Ode to a Nightingale: a puzzling study in literary criticism

The field of literary criticism is an interesting and fruitful one, in which puzzlers might carve out a niche. This was recently brought home by a conversation I had with a sagacious old gentleman in ...
6
votes
0answers
435 views

Complete the following analogical analogy

In an analogy ":" means "is to" and "::" means "as/like". Now, since this is almost an analogy (maybe a future type), I will accept the solution if it's almost correct. Kinberg : ‴niɘɈƨnɘƨiƎ‴  :: ? ...
6
votes
0answers
277 views

Looking for a kid's puzzle, cannot remember title

I'm looking for a kids' logical puzzle I saw in a Brazilian puzzle magazine several years ago. A farmer had a square farm with four houses and twelve trees and he wanted to divide it between his four ...
6
votes
0answers
388 views

What is a 255b Word™?

This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a word conforms to a special rule, I call it a 255b Word™. Use the ...
6
votes
0answers
235 views

Forbidden Love: A tale of two kingdoms

Once upon a time there were two kingdoms (bluex and pinksus) separated by a wall of eternal war. The kings of these two kingdoms each had one son and one daughter. Their children sought to end the war ...
6
votes
0answers
354 views

A multi-symptom affliction

"Kindly state your name." The nurse's voice was polite, but qiet. "I'm sorry, I can't hear you, my hearing's bad." Being mostly deaf was quite frustrating for our patient. "...
6
votes
0answers
581 views

How to Complete this Cryptographic Challenge?

I've been trying to solve this cryptographic challenge for months: ...
6
votes
0answers
303 views

Finding Rogue Kitty II

Having been met by a group of very unhappy bosses at Kitty is being 'returned' to the staff car when suddenly there is a commotion and she makes a run for it. As they chase her, little old ladies ...
6
votes
0answers
347 views

Best moves for a 7X7 4 queen board

There is a 7x7 board and 2 players, each having 2 queens. The queens can move just like the queens in chess, but cannot capture each other. At the beginning, the first player places both the queens on ...
6
votes
0answers
235 views

Encoded Dreams Cipher

This note was found at the scene of a Parisian artists loft in the 1960's. Sadly, he committed suicide the day before his first major exhibition. Can anyone decrypt his final written words? (It is ...
6
votes
0answers
13k views

Crypto Riddle for a bonus track

here is a crypto riddle a artist named Master Boot Record put on the page of his music. 087 104 101 110 032 116 104 101 032 077 111 111 110 032 119 105 108 108 032 115 104 101 100 032 110 111 032 108 ...
5
votes
0answers
176 views

4 steps with common theme

What are the 4 steps, what is their theme, and what is the result? ...
5
votes
0answers
742 views

Toilet Paper Math?

Ben stared in dismay at the hundreds of bits of paper scattered around his room. This was going to be a lot of work. His brother waltzed in and picked up a larger sheet. "Watchya doin' writin' ...
5
votes
0answers
185 views

Sequence puzzle: 3, 9, 27

A twist of the classic sequence game: A friend asked me to find the rule to this sequence: 3, 9, 27. I am allowed to suggest other sequences to test if they follow that (unknown to me) rule, to which ...
5
votes
0answers
230 views

Trying to find a 2020 puzzle hunt with a puzzle based on Among Us

I am trying to find a puzzle hunt that I believe was held in 2020. It contained a puzzle based on the game Among Us with 26 characters, and you had to decide who were the imposters. The imposters all ...
5
votes
0answers
300 views

Try to solve the “Mexican Puzzle”?

Can you solve this puzzle I created last week?
5
votes
0answers
374 views

Name and solution of puzzle to rotate all arrows to same direction

In this puzzle, when you click an arrow, all arrows immediately next to it (diagonally included), as well as the arrow you clicked itself rotate 90 degrees. The goal is to get all the of arrows to ...
5
votes
0answers
168 views

How many items are there in the lab?

I am looking for how to complete the following question so that it gives a unique solution. Maybe somebody can give a visual solution. A lab contains experimental equipment. 24 items are ready to use ...
5
votes
0answers
115 views

Designing the system for a series of systemic puzzles?

I want to make games that give the player the feeling of being a scientist in another world. That is, the puzzles and systems within the game follow a set of rules that the player needs to discover. ...
5
votes
0answers
154 views

What are the red, white, blue (and green) numbers?

Some numbers have been partitioned into $4$ groups. You must figure out how the numbers in each group are related, and what separates the groups. Red: $1, 3, 4, 9, 13, 14, 15, 19$ White: $5, 7, 10, 12,...
5
votes
0answers
111 views

What tools do you use to solve these puzzles?

So, I know that this is more a puzzle-question-gets-asked sort of gig. But I was wondering what tools you all use to solve these puzzles. I know that creativity and logic are a must, but when it comes ...
5
votes
0answers
200 views

The Abnormality of me

I just got born. There's nothing I can do. Maybe "nothing" is such an appropriate word for an age 0. A year passed. There's still nothing I can do. I haven't changed. Maybe I am to retain my ...
5
votes
0answers
168 views

Travelling Europe

Coming from Antwerp on the day Florin resigned, Louis and Evans brother watched the match at the old forest lodge and with Louise, but without Cécile, they visited the first movie of the day. ...
5
votes
0answers
275 views

Truly unexpected thingy in a Radcliffe novel!

Ann Radcliffe was an English author in the Gothic style at the turn of the nineteenth century. Among the many interesting points in her remarkable career though, one little story is but poorly known. ...
5
votes
0answers
167 views

Find the next country and the parameters

I created this puzzle. Denmark = [1 or 4, 11880, 1, 15, 4.433687003, 4 or 5] India = [11803, 381024, -1, 23, 0.3706062241, 5] New Zealand = [8916100448256 or 302875106592253, 43680, -1, 40, 0....
5
votes
0answers
214 views

Number Code - A Visitor by Moonlight

You hear a knock on the door downstairs while you're sleeping. You creep down the stairs by the light of your phone, only to see a shadow exiting through the window. By the moonlight, you see a piece ...
5
votes
0answers
334 views

7 clues that fit a squid

7 clues that fit an octopus, a monkey, the monkey's brother, the monkey's cousin and a Siamese centaur. small adorned place you can drink after about the kind I like to meet be1oved teacher ...
5
votes
0answers
150 views

Sherlock's silly side

Sometimes Sherlock can be a total weirdo when I'm in the room with him. "HorSesHoe sheLlsHocks remOrsEless cOmmerceLess chRomosOmes," he said to me. "CocKLEShells!" I replied, whereupon he ...

15 30 50 per page