Unanswered Questions
53 questions with no upvoted or accepted answers
25
votes
0
answers
2k
views
Decrypting the Key: "Phage is Spreading.."
I've been trying to solve this puzzle called "Phage is Spreading.."
...
- 10.3k
22
votes
0
answers
2k
views
REALLY important days in history
@Z. Dailey asks a mathematical puzzle Important days in history... and to come! with a series of dates in years 1973, 1978, 1983, 1992, 2005.
My puzzle asks the question: What is the previous date in ...
- 197
19
votes
0
answers
974
views
Alternate, complex potions puzzle from HP fanfic
A long narrow room. The entrance is blocked by purple flame, the path onward blocked by black flame. On a table, the only thing in the room, are two dozen potions in opaque bottles. Half green glass, ...
- 191
18
votes
0
answers
712
views
Determining the meaning of a challenge coin
I saw this rather cool looking challenge coin the other day, and I was wondering what the associated binary on the back of it means, as it isn't standard ASCII.
In plaintext:
...
- 10.3k
14
votes
0
answers
654
views
Qubes: Oh, For the Love Of
TL;DR: This is a mixture between a tribute/spin-off puzzle and an attempt at a new puzzle type, greatly inspired by the notorious arcade game, Q*bert, published originally by Gottlieb Amusement Games. ...
- 793
12
votes
0
answers
1k
views
Hidden message in rap text II: "Ya, a ray 'ave july joy!"
This puzzle is inspired by this one by @LukasRotter. Hopefully you don't mind me using similar (well, basically the same) format as yours, Mr. Rotter! ;)
The same rapper released another teaser for ...
- 336
11
votes
0
answers
328
views
An Attempt at AV Puzzle
Here's another puzzle with visuals and sound. I hope you enjoy it!
With Sound:
https://youtu.be/yHkQdEu0QpA
Static Image (the musical notes represent the music in the YouTube video):
Hint 1
Hint 2
- 812
11
votes
0
answers
520
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 ...
- 817
10
votes
0
answers
714
views
A funny looking cipher puzzle
What secrets does this jester hold? Hints are found down the road.
A hint, or rather, that what is held transcribed:
- 101
9
votes
0
answers
309
views
Dreamcatcher Puzzle
I created this puzzle as part of a set of puzzles about good wishes for a wedding. Does it work?
- 252
9
votes
0
answers
353
views
12:41 puzzle: colorful geometry
The answer is a 4-letter word. I will not be giving any hints.
This puzzle is very old. The puzzle is solved using only the image (no clues to the puzzle in title or description).
CommunityBot
- 1
8
votes
0
answers
346
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███████████████...
- 181
7
votes
0
answers
368
views
Do you see the point?
Original puzzle by me.
Remember to always obey your superiors. The first one should be 08594.
Hint:
- 821
6
votes
0
answers
88
views
6
votes
0
answers
255
views
Visual puzzle involving mathematical operations
Try this puzzle. It involves mathematical operations. Created on my own.
CSV (for those who aren't able to see images):
...
- 2,423
6
votes
0
answers
254
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 ...
- 10.3k
6
votes
0
answers
375
views
6
votes
0
answers
320
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. ...
- 5,430
6
votes
0
answers
302
views
Find the missing element?
I've been trying to solve this for quite some time, can you help me solve it?
This puzzle was made by one of my friend's teachers. This is not copyrighted and cannot be found anywhere on the internet.
...
- 41.7k
5
votes
0
answers
185
views
The sound of the end of the world
What is the sound of the end of the world? The answer is hidden in this maze.
- 301
5
votes
0
answers
223
views
"PRI" puzzle with line drawings, including some shapes
This is a "PRI" puzzle that was posted on a reddit question. https://www.reddit.com/r/cognitiveTesting/comments/1btdot2/has_anyone_got_any_hard_pri_puzzles/
- 10.3k
5
votes
0
answers
265
views
Longest Fibonacci word
Fibonacci words are defined as $F_0 = a, F_1 = b, F_{n+2} = F_nF_{n+1}$ where $a, b$ are letters. How can you find the longest Fibonacci sub-word in a given string?
Try to solve it in linear time ($O(...
- 151
5
votes
0
answers
264
views
Connect dots on a grid with one continuous line (optimization)
(This question is the third puzzle of the Connect dots puzzle series. You can find the first two puzzles here and here, respectively.
The original question and photos originate from webadventurer. ...
- 1,163
5
votes
0
answers
368
views
4
votes
0
answers
333
views
Lucas's interesting cipher
Lucas was fooling around with some letters when he encoded some text into Gsobj lwmtkd sbceugb vfy rgdjb.. Can you figure out the original text he had?
4
votes
0
answers
205
views
Mr. Bean's Ridiculous Way to Work
If you saw Mr. Bean as a kid, or ever, you know how crazy and unbelievable he is. In this scenario, Mr. Bean lives in the bottom left house and works for the school at the left, but he always takes ...
- 10.3k
4
votes
0
answers
234
views
The smallest number
Some time ago I created a program to generate a table, and printed the first seven rows and columns.
Somehow however I forgot to print the headers and the title of the table.
I only remember that it ...
- 229
4
votes
0
answers
418
views
What type of puzzles are the statue puzzles in Super Lucky's Tale, and what method should be used for solving them?
This question is about a set of puzzles in the video game "Super Lucky's Tale" (as well as its Nintendo Switch remake "New Super Lucky's Tale"). They are known as statue puzzles as ...
- 299
4
votes
0
answers
187
views
Problem #NaN Fodder/Output
Inspired by Ben Franks' Input/Output Problem #1 and the others in the series
Hint: Knowledge required is
- 2,395
4
votes
1
answer
561
views
Formula for the sequence 1, 1, 1, 21, 3, 1, 4, 1, 5, 1, 6, ... if the 21 isn't a mistake
The sequence 1, 1, 1, 21, 3, 1, 4, 1, 5, 1, 6, ... appeared in one of my tutorial sheets in 2019. I assumed that the fourth term, 21, was a mistake (was supposed to be ..., 2, 1, ...) then it made ...
- 10.3k
4
votes
3
answers
392
views
4
votes
1
answer
660
views
Find next element of the sequence
Source of the question: Taken from the sub-Reddit r/askmath here: https://www.reddit.com/r/askmath/comments/15ar3ne/looking_for_the_answer_to_the_following_sequence/
What is the next element of the ...
- 4,057
3
votes
0
answers
156
views
The Mono-Quantum Condrum
You are presented with a locked box, and on its surface, you notice a sequence of peculiar symbols:
⌬ ⌅ ⊙ ⊡
Next to the symbols, there's an inscription:
...
- 147
3
votes
0
answers
283
views
3
votes
0
answers
171
views
Odd one's out (sequence)
Once upon a time, there was a curious mathematician named Friedrich. One day, while exploring a new area of mathematics, he stumbled upon an intriguing sequence of numbers:
0, 1, 2, 2, 4, 3, 3, 4, 4, ...
- 53
3
votes
0
answers
314
views
Will you regret solving this puzzle?
It's February and you walk into the Smithsonian American Art Museum. A piece of artwork was recently bought for $2,061,966 USD, but you are confused that the museum bought this ugly artwork that even ...
- 1,323
3
votes
0
answers
406
views
Here's the song, now tell me the title!
You ever have it happen where you know how a song goes, but you forget its title? I've heard you guys are good at figuring stuff out for free, so I'll just drop some notes here
and let you guys do ...
- 2,389
3
votes
0
answers
7k
views
The New York Time's "Letter Boxed" Puzzle (spoiler)
WARNING: I solved this puzzle and posted a solution below. I'm posting this more for muse.
Hello! I don't know if anyone's enjoyed this puzzle on The New York Times website, but I find it rather fun. ...
- 10.3k
2
votes
0
answers
164
views
Sequence of shapes with lines and dot
This is another puzzle from Lanrt-F IQ test that was posted on Reddit
https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd.it%2Fmy-favourite-2-problems-from-lanrt-f-v0-58puclks5a6d1.png%3Fwidth%...
- 16.2k
2
votes
0
answers
236
views
What does this prove? (2)
Since 30 characters is required, here's some fluff:
Illuminate Your Mind with our brand new product of ... just kidding we don't have a product lol...
Hint:
- 3,185
2
votes
0
answers
318
views
What's the missing number related to primes?
I would like to draw your attention to this mathematical sequence related to prime numbers I've created and ask what the missing number is.
2, 5, 27, 182, 2310, 27200, ______, 8998400, 223092870, ...
- 29
2
votes
0
answers
522
views
Digerati IQ test
This question contains spoilers.
After making the Digerati IQ test (http://play.google.com/store/apps/details?id=cz.digerati.iqtest) there are three questions where I still don't know how they come to ...
- 10.3k
2
votes
0
answers
332
views
I Need Help Solving A Riddle - Its Just An Image?
So I was in this hackathon competition where they promised the people who placed in the top 3 a lot of money and then they delayed the results two weeks. Yesterday, when they were supposed to announce ...
- 10.3k
2
votes
0
answers
244
views
How to hide coded messages in kaleidoscopes
Has anyone ever made or ever heard of making coded messages using repeating patterns or colors in kaleidoscopes? I had the idea for a project and was wondering if anyone had any experience with ...
- 3,441
1
vote
0
answers
119
views
Progressive matrix puzzle with circles and dots
This item was posted on reddit and there is not a clear explanation for the solution.
https://www.reddit.com/r/cognitiveTesting/comments/1dgkakw/answer_and_explanation_please/#lightbox
- 10.3k
1
vote
0
answers
1k
views
What are the patterns in these two matrices?
I found these puzzles on https://iqmentor.io, and could not figure out the solutions to them. Any thoughts?
I also posted this on Reddit. Including the link here in case you'd like to see more people'...
1
vote
0
answers
144
views
An increasing decreasing sequence
In math, there are all kinds of sequences
1545, 1218, 1071, 921, 851, 832, 799, 793, 774, 745, ... is (the start of) such as sequence
What is the best number?
Note:
Even in math things change, so ...
- 9,366
1
vote
0
answers
213
views
I need help deciphering what looks like a binary message
I was watching a YouTube video and it’s filled with secret messages and codes. The last two codes were in binary and inserting them into a translator provided correct answers. However, that's not ...
- 10.6k
1
vote
0
answers
179
views
Find the next term in the given sequence
I created this puzzle.
The sequence is as follows: $$320, 71,4632,1E3D, 84B7, 6154, 4F3A44, 38B12, 11F1, BE7E44$$
Find the next element in the above sequence.
Hint 1:
Hint 2:
Hint 3:
Hint 4:
- 1,583
1
vote
0
answers
221
views
A visual crack the code puzzle
Just have this now what are all these acronyms refer to and what is the code ?
CommunityBot
- 1