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4 votes
1 answer
275 views

In the spirit of simultaneous equations

Solve the following word/letter/number equations: For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. And there are three that bear ...
David's user avatar
  • 862
4 votes
0 answers
212 views

The madness of a master

It was midnight. Mr. Holmes was suffering from abdominal pain, shortness of breath, pain in the bones, skin lesions and whatnot? So in this condition, why would Mr. Holmes drive to Brazilian Churches, ...
Suzuna Minami's user avatar
9 votes
1 answer
502 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 ...
Scratch---Cat's user avatar
18 votes
1 answer
348 views

Mathematics is Material

The instructions for this puzzle...darn it, I wrote them down around here somewhere. Well, you're smart so I'm sure you'll figure it out! CSV: O,H,T,N,E,Z,R,I,G,M,R,V,P,O,U,E,N,L,I,O,I,E,D,F,I,E,S N,...
Jeremy Dover's user avatar
  • 28.8k
30 votes
2 answers
1k views

A fairy tale in a golden toy

Once upon a time, long long ago, in the days when good stories were far more beautiful and far harder to come by, a king was asked by his spoilt but beloved princess daughter to give her a fairy tale. ...
Anon's user avatar
  • 5,430
45 votes
1 answer
2k views

Ridiculous problem from an old maths textbook

There's a puzzling little problem I found in one of my old maths textbooks (Basics of Madthematics). In the middle of a whole bunch of normal problems on calculus and algebra and whatever, suddenly ...
Anon's user avatar
  • 5,430
18 votes
1 answer
689 views

A remarkable musical ode

On his deathbed, the great blind composer Charles Triangle composed the following remarkable piece, but his penchant for puzzles has left critics in tears searching for a deeper meaning to a piece ...
Anon's user avatar
  • 5,430
2 votes
1 answer
180 views

Exceptional numbers, neither good nor bad

Behold, my new comrades, a monstrous yet straightforward puzzle, appearing on the order of that group of fellows occasionally visiting PSE but hitherto unable to join their simple friends. I assure ...
Anon's user avatar
  • 5,430
7 votes
2 answers
267 views

A special chemical compound with a touch of math

What do you get when mixing Aluminium, Neon, Nitrogen, Sulfur, Titanium, Vanadium, and two math ingredients $\lim_{n\to\infty}(1+\dfrac{1}{n})^n $ and (degree,?,seconds) and don't ask ...
ThomasL's user avatar
  • 12.3k
7 votes
1 answer
419 views

Density type puzzle 5

A puzzle in the spirit of this puzzle. I've tried to make it a bit tougher this time, though there are no distractions of any kind. Enjoy! Final answer: (4,5) Hint 1 Hint 2 Hint 3 Hint 4
Jens's user avatar
  • 8,870
-9 votes
4 answers
351 views

It's his birthday!

A friend of mine told me that he was about to have his birthday. However, he didn't tell me what his birthday was. When is his birthday? Compulsory Hint 0 Compulsory Hint 1
昨晚忘記呼吸's user avatar
6 votes
5 answers
436 views

Patient No. 141

I have a rare disease and it is really dangerous. I need oxygen tanks supplying oxygen to me. It is like I rely on oxygen tanks more than water and food. I think that my path to cure takes ...
Quark-epoch's user avatar
  • 1,695
6 votes
4 answers
437 views

What's wrong with this D20?

Here's a D20 I produced by 3D printing and finishing. Something is wrong with it relative to the intended design. What is wrong and how did it get to be that way? Hint:
R.. GitHub STOP HELPING ICE's user avatar
1 vote
2 answers
324 views

What is the secret of this Math(s) "joke"? [closed]

On a page called 14 jokes only intellectuals will really understand, it lists: A mathematician is heading to a house party. Just as he is coming up to the house, he notices there are no cars parked ...
Brock Adams's user avatar
14 votes
5 answers
2k views

When did I make this puzzle?

I was flipping through some of my old puzzling notebooks, and I found an old puzzle of mine I don't quite remember. I tried to find when I made it (I put the date I made all of my puzzles on them), ...
Excited Raichu's user avatar
3 votes
2 answers
240 views

This title is not a clue

$\color{#FFFFFF}{\textsf{I am required to have text in my question. This is not a clue. Stop reading and look at the image.}}$
Wheat Wizard's user avatar
  • 1,363
8 votes
4 answers
1k views

A Mix of Puzzles

Weapon of the sea, undented, times x or y minus the first, reversed. 3-4 triangle complete. A bucky lemur nun. Shakespearean poem less nonagon's sides. Krypton minus vanadium. (omg i messed this up ...
Excited Raichu's user avatar
5 votes
1 answer
570 views

Solve this puzzle. I created for my friend for FUN :)

My friend is very good at puzzles. so i thought of creating one by myself and try to see if he can solve. Finally I succeeded and he gave up. Interested people can try. Hint: use all four arithmetic ...
uday's user avatar
  • 131
3 votes
1 answer
194 views

More Email Shenanigans

I don't know how these people know my email address, but after the (still unsolved) shenanigans of the Interesting email I received? I got... yet another email. This one was of a Google Drive document ...
Excited Raichu's user avatar
7 votes
2 answers
257 views

Simple Arithmetic Puzzle 6. Or is it?

Here's a sixth one! (with a twist) \begin{align}16&=\boxed9\times18\\5&=13\times\boxed3\\?&=9\times20\end{align} Can you find the value of the question mark? HINT 1:
TheSimpliFire's user avatar
3 votes
2 answers
132 views

A story reminiscent of something

An old Russian mathematician once told me this strange story... “In a galaxy far away there is a civilized species. The skin colors of everyone in the species is blue or green. Among the ...
tyobrien's user avatar
  • 3,663
9 votes
6 answers
5k views

100 pieces 1 opportunity, choose wisely!

Say you have a cake that is cut into 100 pieces. One of the pieces has a hidden prize. 100 people take turns, each taking a piece in sequence hoping to find the prize. Note: I slightly modified (...
The Cake is a Lie...'s user avatar
5 votes
1 answer
179 views

Stuck in Space - Part I

I've been transported through a wormhole to a new planet in a new universe. Standard stuff, really. But something is... off about this planet. Sometimes, walking around it, I just feel like I'm ...
Nico A's user avatar
  • 819
10 votes
4 answers
819 views

How to deal with Tim

My friend Tim is a real dick. Whatever happens to him he just won't die! I asked him what the secret to his power was (So I could kick his ass). He handed me a crumpled up piece of this paper with ...
Jon.G's user avatar
  • 1,498
11 votes
1 answer
866 views

Weird and complex puzzle that we need help with

So basically this is a complex deep web puzzle and we're pretty much stuck at it right now as we don't have any idea what this is about, any help will be aprreciated (the attached images are the ...
Zyu's user avatar
  • 111
21 votes
1 answer
464 views

Orange you glad it's not Lemon?

My friend gave me this note in class, my very own third grade mathematics class! But alas: To little, my third grade-ly efforts amassed. Again and again, I wish I'd known then,...
puzzleweaver's user avatar
  • 2,444
5 votes
2 answers
287 views

Sada, Nadine and the novus text

Sada and her fried Nadine found a novus text. They think the person who wrote it was trying to convey some message. Just before the text was a bit of mathematics but their knowledge on mathematics is ...
Bruno Costa's user avatar
-9 votes
6 answers
319 views

Average of a Series

The "average" of a series is x. A new data point comes in with the value x + 1. But the new average is less than ...
Ajay Brahmakshatriya's user avatar
11 votes
4 answers
1k views

Puzzle creator looking for feedback!

I've been an amateur puzzle maker for a long time. I've never really found an audience and someone suggested that I check this place out. My puzzles are kind of ARG style. Let's see if you can figure ...
user3198645's user avatar
12 votes
8 answers
2k views

Prison Pizza Party

You are an inmate at Infinity Prison, where prisoners must work together to solve a challenging riddle every day to ensure their very survival. But today is your lucky break; the warden has decided to ...
Taylor Brandstetter's user avatar
4 votes
4 answers
408 views

Find out the rules from examples, then solve it

Fill the blank rectangles with numbers 6 to 16 Find out the rules from examples The answer must be unique Hint:
Jamal Senjaya's user avatar
4 votes
4 answers
537 views

The Battle of Puzzlings

I present to you... The Battle of Puzzlings Your task is to turn 'one' into a letter representation of 1066 (the year of the Battle of Hastings): Rules Fewest moves wins. All matches must be used. ...
rybo111's user avatar
  • 4,945
5 votes
1 answer
378 views

The Numberphile Heist (part 2)

A sequel to The Numberphile Heist (part 1) You hear a click, and a slight push reveals the entrance. Looking at what's inside, you laughed at your own naïvety. Instead of a mountain of brown paper, ...
Zerium's user avatar
  • 755
9 votes
1 answer
559 views

n is a number, but the result is not

Here's a formula: (n - e) + (n + 1 - w) + (n + 3 - f) + (n + 6 - s) + (n + 2 - h) n is a number, but the result is not. What ...
rybo111's user avatar
  • 4,945
26 votes
3 answers
1k views

The PSE School of Enigmatics (Part 1)

Update: I fixed up the second image, making it (perhaps) a little bit easier to crack. You leap out of your bed. Today's the day! You check your mailbox, and wow, there it is! The frayed look of the ...
Zerium's user avatar
  • 755
3 votes
1 answer
376 views

The game of pebbles +

The game of pebbles is a two-player game. The game starts with N stones. On a player's turn, he or she must remove either 1, a power of 2 (2,4,8,...) or a power of 3 stones (3,9,27,...). The player ...
Dattier's user avatar
  • 308
5 votes
4 answers
2k views

The game of pebbles

The game of pebbles is a two-player game. The game starts with $N$ stones, and a number $c>2$ is fixed. On a player's turn, he or she must remove either $1$ or $c$ stones. The player who does not ...
Dattier's user avatar
  • 308
12 votes
2 answers
331 views

El Circo de Desconcertante

Well. It took you long enough. But finally you have tracked El Circo de Desconcertante down to this door in this dismal alley. You knew you wouldn't just be allowed in, so you've come prepared with ...
Beastly Gerbil's user avatar
9 votes
1 answer
656 views

The Mathematics Department

After a whirlwind tour of the English department, the tour entered the Mathematics department. Upon entering, I immediately heard some interesting conversations: "It's like a puzzle, that game..." ...
boboquack's user avatar
  • 22k
27 votes
6 answers
2k views

Stargate escape

What a nightmare! When you awake in cold sweat you only remember dazzling colours, flash-lights, dark shadows with far too many arms and the sickening sensation of being dropped from a high place. You ...
BmyGuest's user avatar
  • 18.2k
10 votes
2 answers
638 views

Welcome to Nᴏɴᴇderland

(The puzzle statement now identifies these numbers as equivalent.) O O O O O O ...
humn's user avatar
  • 21.9k
25 votes
3 answers
1k views

Welcome to Oɴᴇderland

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
humn's user avatar
  • 21.9k
8 votes
3 answers
490 views

A seriously confuse recipe - or is it?

Mix one teaspoon of the first ingredient with one of the second ingredient in a bowl. In another bowl, repeat the operation, adding one more teaspoon of the second ingredient. Repeat again until you ...
fffred's user avatar
  • 2,935
15 votes
3 answers
1k views

A Greek cipher about 2 lovers

One man and one woman once loved each other very much. But there was always something or someone who came between them and they had to eliminate that person or thing. One was so beautiful, the world ...
Decypher's user avatar
  • 2,386
7 votes
1 answer
463 views

A Puzzling Cafe Parfait

The Puzzle Cafe is famous for it's delicious parfaits, however, they come with a catch. To eat each layer, you have to solve the puzzle in the layer before it! After hearing all the rave reviews, I ...
Yllrauei's user avatar
  • 355
55 votes
6 answers
4k views

Can you explain these equations?

Anthony just got a new drone with an HD camera and microphone, and he is eager to test it out. He connects his computer to its wireless live video stream, opens up his window, and flies it outside. ...
pacoverflow's user avatar
  • 15.2k
23 votes
3 answers
1k views

Musical in Nature

What is the next song in the list? Pedal To The Medal Not Inside -- Outside The Final Countdown Every Rose Has Its Thorn ......... The Puzzle Within these dots, you shall find a magical, mystical, ...
Z. Dailey's user avatar
  • 3,580
10 votes
2 answers
966 views

Euclid's orchard

Once upon a time Isaac was lounging under a tree in Euclid's apple orchard, when something struck his foresight. “In the future,” he imagined, “the layout of these trees could help ...
humn's user avatar
  • 21.9k
10 votes
3 answers
1k views

Likeable Alb's Chip Restaurant

Story: You go to a restaurant called "Likeable Alb's" to eat some of their world-famous chips. You sit down in your chair. Some time later, the waiter comes and hands you the menu. The menu contains ...
Xandawesome's user avatar
  • 1,284
0 votes
1 answer
214 views

Sum the two numbers

If you know that: TWO + THREE = TILAS THREE + NINE = TUZRI FOUR + TWO = GIRF EIGHT + NINE = EVOUX NINE + NINE = BARAI Can you tell: TWO + NINE = ?
kamenf's user avatar
  • 6,506

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