The Stack Overflow podcast is back! Listen to an interview with our new CEO.

Questions tagged [knowledge]

A puzzle whose solution relies on external sources such as tables, dictionaries, Wikipedia, or specifics that may not be common knowledge.

Filter by
Sorted by
Tagged with
9
votes
1answer
280 views

On Doors and Passcodes, or Flying High

After going to sleep one night, you wake up in the middle of a dimly-lit cavern. You can feel the cool, damp surface of the stone beneath your fingers as you push yourself to a sitting position and ...
22
votes
1answer
429 views

It was a dark and stormy night

September 8: It’s raining, and Russian Emperor Czar Nicholas awakes, confused. Someone enters, completely soaking. “It’s positively vile – I’d resist going outside.” It’s Czarina Alexandra. “...
3
votes
1answer
246 views

What is a Scott Word™?

In the spirit of the What is a Word™/Phrase™ series started by JLee, a special brand of Phrase™ and Word™ puzzles.Template taken from Rubio. After seeing so many of these puzzles, I thought that it ...
9
votes
1answer
291 views

What is a Human 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 Human Word™. Use the ...
13
votes
2answers
230 views

What was Grandpa's itinerary?

Grandpa decides to take a multi-country tour visiting big cities First he goes to LIBYA Then to PERU Then to BAHRAIN Then to _______ Then to _______ Then to _______ Fill ...
8
votes
3answers
406 views

Let me hurl this riddle to you

Role 1: These people do things in mountains, pastures, hills, fields, forests... Role 2: These people do various things. They can find you a house, a hotel, send you something, kill you... Role 3: ...
19
votes
2answers
611 views

Seven levels through Europe

Let's take a little trip through Europe, shall we? Each level forms a word chain. Even-numbered levels (yellow) go clockwise, odd-numbered ones (white) go anticlockwise. Each level has ...
8
votes
1answer
281 views

What is a Fade 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 Fade Word™. Use the ...
10
votes
2answers
1k views

What is a Union 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. After a long period of division, tends to unite; After a long period of ...
23
votes
1answer
1k views

Properties: Left of the colon

Here are three short 'property' puzzles I wrote. In each puzzle the words to the left of the colon all have a (non-trivial) property that the word to the right of the colon does not have. What is ...
4
votes
3answers
397 views

Tricky Tropical Water Temperatures

Herman lives in a house on the Caribbean island of Kinja, where the weather is warm all year. Let’s assume all Kinjan houses are of similar construction, and no houses have a water heating system. ...
16
votes
1answer
716 views

A wiild aanimal, a cardinal direction, or a place by the water

I'm in the north. I can be accompanied by violent crimes, a relative direction, or a body of fresh water. I'm in the east. I can be accompanied by a wiild aanimal, a cardinal direction, or a ...
9
votes
1answer
433 views

Find the missing country

Below is a list of ten countries, with one missing. Find one attribute (for example, the population) of each country, so that if you take the first number or first letter of each country’s attribute, ...
6
votes
5answers
884 views

Violations of the law

I live in A but work at B. The two are 45 minutes apart and I could commute back and forth either by driving or by taking the bus. Every day, before going from A to B in the morning and before going ...
8
votes
1answer
254 views

What is a Mono 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 Mono Word™. Use the ...
5
votes
1answer
313 views

What is wrong about that person?

I once was in a relationship with Ms. Litson. Things were OK, I guess. But not before too long, I could see that I could not keep up with her. Things were slipping. I couldn't bear this, it ...
28
votes
9answers
8k views

Easy riddle. Prove the equation

Background: I am a French educated person. My old math teacher keeps posting some small and funny riddles, here's one of his: The next equation is correct: 11111=0 Can you prove it? ...
7
votes
1answer
224 views

A Group of people: A simple word

This word describes a group of people Take the last letter out: A person with some authority Take the last two letters out: Same person Take the last three letters out: Same person ...
10
votes
2answers
432 views

#, %O, and so on

I woke up this morning to find someone had added a new button to my basic calculator. Besides the $+$, $-$, $\times$ and $\div$ buttons, there's now also a $\#$ button. I figured, "Well, this probably ...
5
votes
2answers
238 views

Fiction Book Who Am I?

I am a fiction character that follows these criteria: A maiden huntress, whose life was brief I left my brother with a lot of grief Died fiddling with lots of gears My friends, my friends, ...
4
votes
1answer
310 views

Two friends who went through some rough times

First I had a pretty good vision But then they locked me up And blinded me ! But I kept my heads on my shoulders Even though they drugged me... Then I played the role of my life (and death) ...
7
votes
1answer
136 views

What are the missing letters?

What letters are missing from the end of this list? ...
4
votes
1answer
159 views

My name, my name, it's a guessing game!

I needn't be late, that would be bad As a man with a job, I must get to work I must travel quickly now, so I go I travel by the underground train I have bills that I need to pay I need that money to ...
8
votes
2answers
3k views

Is Grandpa Irrational? Another Grandpa Mystery

Grandpa likes iron skillets but not aluminum pans He likes m&m but not just "m" He likes Michigan but not Georgia Why is that?
3
votes
2answers
188 views

Translate this “especially important” note from “War with the Newts”

Language-identification questions are off-topic on linguistics.stackexchange.com, or I would have posted this over there. Since it's also a puzzle, I figure puzzling.stackexchange might appreciate it. ...
18
votes
2answers
1k views

Stella and the president's secret notes

Jason Trump, president of the Untitled Statues Association, has left a notebook containing presumably important information lying around on his desk. Stella, his nosy assistant, takes a look only to ...
12
votes
1answer
309 views

Is it simple Math or something else?

Grandpa with his mischievous smile said: "If zero belongs to One And two belongs to Four Twenty seven belongs to Seven Then what belongs to Three?" Hint When I could not guess, I ...
7
votes
3answers
257 views

Which Birch Bark Manuscript is Genuine?

Inspired by a question from JLee You arrived at Siberia where, just one month ago, excavations discovered a civilization that existed and traded for hundreds of years, developing an elegant language ...
21
votes
1answer
2k views

What happens on Day 6?

My friend, who works in a Library, has recently learned about Puzzles, in general, and Puzzling Stack Exchange, in particular. He was excited and has sent me this puzzle to "test" the users of PSE. ...
26
votes
6answers
936 views

I can be heavy, but I'll never sink. When I am ready, my glass is a drink

Riley Riddle: My prefix runs past, When you leave what you cast, Where a square may be skipped by a pawn. My suffix is vast, When I swap first with last, Where a breath may be currently ...
8
votes
9answers
1k views

Short, but it shouldn't be sweet

Inspired by Fortnightly Topic Challenge #41 : Short and Sweet, this puzzle suddenly appeared in my head: "When American prefer to bring milk rather than water they will be called _____(5)." ...
15
votes
4answers
1k views

What does my girlfriend want me to buy for her?

I'm obviously dating up, because I can't figure out what my girlfriend wants me to buy her for Christmas. When I asked her what she wanted, she gave me the three puzzles below. The only hint she gave ...
15
votes
1answer
1k views

Everyone but three

For the first time, a photo was taken with every person, living or dead, in frame. Everyone that is except for three. Who were those three?
4
votes
1answer
255 views

Here's a riddle, so listen up yo

I'm from Italy, yet I speak English On top of that, my name is French I hail back from the late nineties galore Last in 2016 did I release lore Until then it has been a decade But we never truly ...
11
votes
1answer
407 views

Where shall we go next?

The following nonogram is about $92\%$ solvable. Also, the grid is not really like it should be. All this feels somewhat annoying, but honestly, not that much, because this is most likely the last ...
14
votes
6answers
420 views

Find me from this cluster

I lie between a tennis ball and a soccer ball, I agree that I'm small. I am at the bottom but at first, Sometimes, I may even burst. My prefix rhymes with an app, I'm in Earth, but not in ...
6
votes
1answer
516 views

Chess Construction Challenge #2-Check!

Xit's time for round two! Given that: -Black has 6 pawns and a king -White ehas three pieces of any kind you to deduce the identity of and a king Construct: -A nlegal position in which both sides ...
12
votes
2answers
634 views

Back to the nineties!

I've left the world before the 90's, But I'm still many a ninety. Inside me there's an instant, I've proposed many a constant. My universe is not stable, But I'm still there at the table. ...
19
votes
1answer
731 views

Bob's unnecessary trip to the shops

Alice and Bob live in London, UK. On a Friday, as per usual, Bob leaves for work before Alice. At lunchtime he receives a WhatsApp message from his friend Charles: Sorry to cancel on you last ...
10
votes
1answer
206 views

Measuring mystery distances

Some puzzling distances: If 110 to 39 is 1046km And 105 to 115 is 114km Then how far is 97 to 38?
46
votes
9answers
7k views

An untouchable time traveller

I'm needed by a doctor to travel through time, Or a player looking for their keys. When on the plane where the great answer resides, I'm part of the whole Strategy. I can be found in a ...
11
votes
1answer
390 views

Mirror Mirror on the wall, who's the richest of them all? (I make billions #7)

Mirror Mirror on the wall, who's the richest of them all? (I make billions #7) Clue group 1: This spa provides a great relaxation rub. Earbuds are included too. I compared virtual machines, and ...
13
votes
2answers
337 views

Fun things to do at home

What do I do when I get home, you ask? Draw a dinosaur (11) Read about an elite person (10) Look at something that is written (10) Learn about navy officers (8) Take things back (7) ...
14
votes
1answer
907 views

One night in Baker Street

The raindrops ran down the windows of 221B Baker Street while Sherlock Holmes played a sad melody upon his violin. The weather and the music reflected his mood, for it had been a trying and vexatious ...
8
votes
7answers
443 views

Connect Wall - Find the common word: Senior, Station, U.S., Request

Connect Wall (my first one): ...
5
votes
4answers
500 views

I make billions (#3)

I make billions (#3) My products are quite edgy, But most have been a bust, I'm only one of many, Lord knows who we can trust, I'm not a politician, Yet I work with presidents, ...
23
votes
3answers
1k views

From the death to the fresh beginning - A treasure hunt

Shortly after your mentor's passing, you received an envelope along with the following note: My Dear Disciple,      I am afraid my time to leave this world has come but don'...
9
votes
1answer
224 views

The flying colours

Here's a $36\times36$ nonogram with two colours. Name all 12 things depicted in it. Note that cells filled with different colours do not need to have a gap between them.
8
votes
1answer
426 views

Simple Arithmetic Puzzle 8. Or is it?

This one's different to all the previous ones... \begin{align}7+53&=28\\16+6&=21\\5+19&=97\\15+8&=\,?\end{align} Can you find the value of the question mark?
7
votes
1answer
220 views

Let's do some CAP (Cosmology, Astronomy and Physics)

ACROSS 5 God of agriculture 8 Time travel 14 Not in Australia... 16 A friend of mine and 800 suns 17 Still growing... 18 Proposed capital Lambda 19 56 + 36 + 3(0) DOWN 1 Nearest ...