# All Questions

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302 views

### Fun with Flags part 9: a different design

We are looking for a 3-word phenomenon. Hint 1: Hint 2: Hint 3: Hint 4: Other (independently solvable) puzzles of this type: 1, 2, 3, 4, 5, 6, 7, 8.
68 views

### This day in history VIII

What historical event happened on this day (11th May). Can you explain the clues? Also, well done to El-Guest who got the answer to This day in history VII. A man of great mind Bested by the first ...
296 views

### FORTY9 Cryptarithm

This puzzle is due to the amazing Martin Gardner and I found it here. Can you find which digit each letter represents to make the following sum work? Each letter is a single unique digit between 0 ...
147 views

### Follow the path of relation through the grid #3

There is a relation between rectilinear-adjacent squares such that there is a unique rectilinear path from the top-left corner of the grid down to the bottom-right corner of the grid. Each square can ...
172 views

### Follow the path of relation through the grid #2

There is a relation between rectilinear-adjacent squares such that there is a unique rectilinear path from the top-left corner of the grid down to the bottom-right corner of the grid. Each square can ...
246 views

### Follow the path of relation through the grid #1

There is a relation between rectilinear-adjacent squares such that there is a unique rectilinear path from the top-left corner of the grid down to the bottom-right corner of the grid. Each square can ...
382 views

### Make -132,680 from these operations

Make the result $-132,680$ using these operations and numbers: Numbers (cannot be used more than once, but not all need to be used): $2,4,6,8,9,10,11,12,23,27$ Operations (all operations have to ...
89 views

### Mathematics Puzzle - Number Circle

The numbers 1, 6, 8, 13, 15, and 20 can be placed in the circle below, each exactly once, so that the sum of each pair of numbers adjacent in the circle is a multiple of seven. In fact, there is more ...
497 views

### Cryptic Family Reunion

GAMES World of Puzzles publishes family reunion puzzles, where ten thematically related answers are clued with anagrams less an extraneous letter, with the theme to be discovered. I thought this type ...
240 views

### find the word in a multi-stage internet scavenger hunt

The answer can be anything. For you can search a lifetime. To discover the bookmarked answer. You must traverse down the long long walls. Using the number of walls of each frame. The key hides twice ...
259 views

### New maths puzzle

The objective is to blacken certain boxes. The numbers outside represent the sum of the numbers contained in the white boxes in the corresponding rows or columns.
223 views

### A book of mystery - Page III

SHOOVER GOT PAGE 2 (THE ANSWER TO WHICH WAS MCDONALD'S ISLINGTON) AND SOLVE PAGE THREE TO GET A HINT TO SOLVE THE NEXT PAGE. Just as was for solving the first Page number three had started to burst ...
1k views

### What was the last move made in this game?

What was white's last move in the game shown below? Note: This is a screenshot taken from an actual game and all moves made were legal. ETA: The last move played by white was the last move of the ...
422 views

### Say me out loud, I'll get stronger

Say me out loud I’ll get stronger Rearrange me It will just make me larger I’m triangular and angular Can be turned into one Left a whisper While staring down Had a groovy ...
123 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 ...
820 views

### How to make a “virgin” Google search?

Disclaimer: this question is intended to be asking for help about puzzle creation, but in a way it can be regarded as a puzzle in itself - except I don't claim to have a very good answer. When you ...
172 views

### The sadistic chieftain and the lethal truel game

In an adventure to a remote island, you get caught by the xenophobic locals and are about to be executed. But the tribe chieftain, known for his sadistic taste, suddenly changes his mind. "I'll ...
4k views

### Unexpectedly Difficult Matchstick Problem

The words say: 听说只有智商高达200的人才有办法打出来 (only people with 200 iq can solve this). 只移动1根火柴让算式成立 (move only one match to satisfy the equation) note: it is not my puzzle and i do not know the solution
179 views

### Great Imagination (The beginning)

First, I'm the largest. Second, I'm lucky. Third, I'm quite similar to infinity. Fourth, I'm nothing. Fifth, I'm lucky. Sixth, I'm half of Third. Seventh, I'm lucky. Eighth, I'm like the ...
110 views

### Smudged Sudoku - help me solve it!

One late evening I was making my sudoku. I finally finished until water spilled all over the middle-right block. The only thing I remember is the numbers present in the block (but not their position):...
52 views

### Query about block and stream ciphers

I don't know if you can help me or not, but I could do with any additional guidance here. I am currently solving a puzzle that needs to use a combination of block ciphers and stream ciphers. I am on ...
119 views

### Anagrammatically speaking 3

Fill in the blanks below. Each sentence uses words that are anagrams of each other. In each pair of sentences, solve the first sentence, change one letter of an answer-word from that sentence, and ...
38 views

### This day in history VII

This day in history was solved first by Glorfindel with Yuzuriha Inori giving a more detailed answer. Today (9th May), a number of years ago, some sort of event happened. What was it and what do the ...
250 views

### Born a X, reaching adulthood no longer a X, but dead, X

Born a X, reaching adulthood no longer a X, but dead, X. What is X? Clue 1
209 views

### A crossword (+ a secret message)

What number does this top-secret message point to? Ftq mzeiqd ue: ftq ecgmdq daaf ar fia tgzpdqp mzp fiqzfk ruhq This table and crossword could help: Crossword clues: Across: 5. A ...
131 views

### Puzzling.SE top 10 Wordsearch!

Welcome to the Puzzling.SE top 10 word search, lets get solving: ...
185 views

### Puzzle of the day - Sudoku Rossini

The arrows outside the grid indicate that the nearest three digits in the corresponding direction are in ascending or descending order (the highest number is always in the direction of the arrow). All ...
117 views

### Anagrammatically speaking 2

Fill in the blanks below. Each sentence uses words that are anagrams of each other. In each pair of sentences, solve the first sentence, change one letter of an answer-word from that sentence, and ...
84 views

### Which is higher John's new salary or Brad's salary or equal? [closed]

John's salary is 30% less than Brad's salary. John left work and joined a new institution, where his salary was 30% higher than his old salary. Which is higher John's new salary or Brad's salary or ...
383 views

### Impossible Cipher v1.0

When I create riddles, ciphers etc.. they seem to get solved within only a couple of days of writing. Well no more! This cipher may not be impossible but is extremely difficult. If left unsolved for ...
205 views

### An $n$-sided polygon with area $n$

Here is a $10$-sided polygon which area is $23$ (i.e. it contains exactly 23 unit squares). Can you draw a polygon with: $6$ sides and area $6$? $8$ sides and area $8$? $12$ sides and area $12$? ...
181 views

### This day in history VI

It was defectedWBC who got the last one. Well done! On this day (8th May) an event happened. Can you tell me the event, explain the clues and tell me what year it happened. A sickly-sweet syrup-like ...
99 views

### A book of mystery - Page II

I AM SORRY ABOUT THE LAST PUZZLE IN WHICH I MESSED UP THE NUMBERS BUT BEASTLYGERBIL EVENTUALLY GOT THE ANSWER WHICH WAS 'THIS CODE BELONGS TO SAM'. ENJOY! Once the first riddle was solved The ...
150 views

### Base compromised

Grid in plaintext The nine highlighted cells contain multiple letters: two or more letters from the down clue, and two or more letters from the across clue (where applicable). The letters in each of ...
125 views

### When is a robotic arm able to reach any point (closer than the length of the outstretched arm)?

In a plane, there is a robotic arm consisting of $n \ge 2$ segments of length 1, like this: The first segment is fastened to a single point ("origin"), but it can rotate freely around that point. All ...
299 views

### The Very Model of a Number Sequence

Number sequence questions are normally not received well here but I thought this one might warrant a bit more attention as it has the following interesting properties: It is a finite sequence. ...
324 views

### Shocks and guesses

The Liar, the Random and Truth teller were captured and brainwashed to forget whether they always lie or tell truth or randomly answer.Everyone is handcuffed to a chair and gagged with gray, white and ...
222 views

### Add a divisor! A game

Let $k$ be a positive integer. Amy and Ben are playing a game, with the number $1$ written on the whiteboard initially. Amy and Ben do the following in order, starting with Amy: Suppose the ...
193 views

### Interplanetary blips and bleeps

Things were quite different in 3000 AD. We'd discovered other planets with sentient life for instance. Five to be precise. Adam, Bill, Carl, Dave, and Eric we called them, and we used the lately ...
194 views

### What is a Computer Phrase™?

In the spirit of the What is a Word™/Phrase™ series started by JLee, a special brand of Phrase™ and Word™ puzzles. If a phrase conforms to a special rule, I call it a Computer Phrase™. Use the ...
936 views

### Sudoku Help: Hard

I am unable to finish this Sudoku. All numbers are verified by the app. I'm sure there must be a way to solve this without guessing. Even an online tool couldn't tell me a next number.
601 views

### Perfect Golomb Circles

A Golomb ruler of order $n$ is a straight line with $n$ marks (at integer locations) such that no two pairs of marks are the same distance apart. We can extend the concept to circles. Place $n$ marks ...
266 views

### Uncle Nestor's travel crossword

Uncle Nestor is a renowned global traveller, and can never stay focused on the one thing for too long. In an attempt to pass the time through the current global travel restrictions, Nestor thought it ...
211 views

### Simon Tatham's Gokigen Naname

Lately, I've been interested in Gokigen Naname a.k.a Slalom a.k.a Slant. Luckily, Simon Tatham has a generator for Slant. Usually, the generated puzzle is so-so, but this particular generated puzzle ...
297 views

### What I am not riddle ?Say my Name!

I have a number in me, but not Area-51 One of my Creator is a fruit, but he is not a plant I have an unknown, but I am not unknown I have Artificial Intelligence, but I am not a robot Say my Name !...
224 views

### Ways to destroy a Square Matrix

Sherlock is solving a case where he came across a puzzle. Suppose you are given a square matrix of size $N$, and a gun with Power $F$. Every cell in the matrix is filled with some number, $x$ (...
163 views

### Longest list of celebrity names [closed]

My friend sent me this great puzzle. What is the longest list of celebrity names you can make where each surname is the given name of the next celebrity? For example: Clive James Dean Martin ...
291 views

### Floor floor floor inside another floor

Inspired from this question $$\aleph(x,n)=\lfloor x\lfloor x\lfloor x...\rfloor\rfloor\rfloor\$$ where $\aleph$ is the inner floor function with $n$ times for $x$. For example;  \aleph(x,3)=\...