Questions tagged [knowledge]

A puzzle whose solution relies on external sources (like tables, dictionaries, wikipedia) or specifics that may not be common knowledge.

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8
votes
1answer
347 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 ...
10
votes
1answer
191 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 ...
8
votes
1answer
117 views

Which family is it?

On the 20th of July '19 it's a large family of 175 members that keeps growing. Youngest is only 2 months. Only four of them are more than 10 years old. What family is it?
14
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?
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. ...
4
votes
1answer
227 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 ...
6
votes
1answer
503 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 ...
10
votes
1answer
197 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?
18
votes
1answer
669 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 ...
11
votes
2answers
605 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. ...
10
votes
1answer
388 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 ...
2
votes
2answers
116 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. ...
13
votes
1answer
868 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 ...
10
votes
1answer
336 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 ...
9
votes
1answer
211 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.
7
votes
1answer
412 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
2answers
180 views

Puzzling Knight has a Message for all- Especially Newcomers

Of all the more than a Trillion messages he can deliver, he has especially selected this message for all. Follow his(normal chess moves for the Knight) path to get the message. His journey starts ...
2
votes
1answer
112 views

Deduce Distinct Digits of the Given Fibonacci Sequence- Detail all Steps

$DEPUS$ $SRST$ $UDQD$ $CTQU$ $DTPR$ $PQR$ $SDE$ $VRR$ $CVV$ $DUU$ $QP$ $TT$
3
votes
1answer
157 views

Valiant Knight is back..but he is in grave danger from the Evil Queen

King has placed a bounty on Valiant Knight and enlisted his evil queen’s help. Queen knows knight’s regular stops of his journey and knows he goes through all odd prime cells. She strategically ...
-3
votes
1answer
71 views

Strange? Primes and Palindromes have no business being in this Place?

$1$ $1$,$2$ Good easy start $1$,$2$,$4$ As expected $1$,$2$,$4$,$8$ I know it is going to be easy $1$,$2$,$4$,$8$,$16$ why is he giving this? I got it! $1$,$2$,$4$,$8$,$16$,Prime ...oops!.....
0
votes
1answer
73 views

How do you make Prime “COMPUTERS”?

$Given$: $COMPUTERS$ is the smallest Pan Digital containing all the digits 1 to 9 occurring only once. $COMPUTERSV$ is a Prime only when one of the correct digit ($V$)is added at the end. Also, $...
7
votes
1answer
216 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 ...
7
votes
2answers
234 views

Listen to my Story…Let us find the Unique Invisible Pan Digital Pair

I was an avid reader of Popular Science magazine. In the last page or so, they usually had visual clues without words to make useful stuff. I always wanted to create a mathematical puzzle like that ...
5
votes
4answers
467 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, ...
2
votes
1answer
98 views

All Aboard..Hop onto the Power Train to reach Destination Unity

Your goal is to reach the destination unity. starting from $3462$ with three intermediate stops. You are allowed to use only 2 mathematical operations..multiplication and Exponentiation. All the ...
14
votes
6answers
398 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 ...
12
votes
3answers
288 views

Traversing Eurasia: A Cryptic Journey

Earlier parts in the series: Africa, US & Canada, Oceania, Latin America & Caribbean. Each answer is a place, landmark or attraction in Eurasia, one per country. The answers traverse all ...
2
votes
1answer
68 views

Primes from the Pan Digital

Pan Digital Number is the smallest with all the digits 1 to 9 with no repeats. When looking forwards or backwards, eleven Primes can be extracted from that number preserving the same sequence. Among ...
12
votes
1answer
346 views

I make billions (#2)

I make billions (#2) At 9, I met my best friend, At 12, I lived an outdoor life, At 13, I broke my arm right before camp, At 15, I worked my first corporate job, At 17, I was ...
12
votes
1answer
449 views

Resolve this Fibonacci Relationship

$Given$: $A$, $B$, $C$, $E$, $F$ are distinct digits varying from $1$ to $9$. $A$ is a Fibonacci number. $BB$, $BC$, $EF$ are concatenated Numbers. $Relationship$: $(A*BB)*(BC)^2$ = $(EF)^2- B$ ...
8
votes
1answer
153 views

Word Wall of Whimsical Wordy Whatchamacallits

I was making a particularly difficult word wall, when I misplaced all the words for it. Luckily, I still had the clues. However, poring through the clues, I realised that I had nine clues, yet my word ...
-4
votes
2answers
259 views

On Fri morning I was racing to work and took usual NYC train from Princeton and

I found a piece of paper with these scribbled on it Dark Thunder. X P X ...with P circled Silver Lightning. X X X... What could those X s possibly represent? Hint 1: Given yesterday Hint 2: ...
5
votes
1answer
120 views

Perfect Powered Relations - Please Figure them out

$D$, $E$, $F$, $G$, $H$, $S$, $T$, $U$, $V$ are distinct digits and can vary from 0 to 9. $DE$, $FGH$, $ESDE$, $SS$, $ST$, $SU$ are all concatenated Numbers. From the given Relations below, deduce ...
5
votes
2answers
121 views

Through the Looking-Glass

Two friends are discussing concepts for a new fantasy story: A: There exists a magical mirror that leads to a mirrored universe. In this universe, people drive on the left side of the road, and you ...
4
votes
1answer
94 views

Decipher this three times, periodically

After hanging around this site for a little while I finally decided to put together a cipher for my first puzzle. I hope you guys enjoy it. ...
6
votes
1answer
115 views

First impressions count

Insert four letters, which represent a place, to create what may be seen in that place.   N E T   N E T
3
votes
1answer
208 views

Tom travels extensively all over. He was trying to figure out

The missing members in the following sequence. $A$, $A$, $A$, $A$, $?$, $?$, $?$ Please help him out.
2
votes
3answers
137 views

Be a Wordsmith — Assemble enough words to score 50 from the Triangular Settings [closed]

Use this triangular setting of letters to form as many words(minimum length 5) as possible, following the given rules. You can start at any letter, follow the connected lines to pickup additional ...
2
votes
1answer
77 views

Find the Missing Members of this Family

Who are the Missing Members? $?$, $V$, $U$, $?$, $S$, $?$, $P$, $O$, $N$, $?$, $H$, $F$, $?$, $B$
12
votes
1answer
257 views

See me once, See me Twice #12

See me once, I'm watching your every move Thanks for your visit, I know you were there I see what you did there in my lair Look for my acronym and you'll have your proof. See me twice, ...
2
votes
2answers
190 views

Magical Knight Moves with Effortless Ease in his Magical Kingdom

Magical Knight knows every Square of his Magical Kingdom. In many respects, he is like any other knight...Literary,Prime, Normal(makes same allowed chess moves). He is people Knight . As he traverses ...
7
votes
1answer
171 views

Traversing Latin America & Caribbean: A Cryptic Journey

Earlier parts in the series: Africa, US & Canada, Oceania. Each answer is a place, landmark or attraction in Latin America or the Caribbean, one per country. The answers traverse all countries by ...
6
votes
2answers
308 views

Unorthodox Prof. Roman’s Chemistry Class Quiz

Prof. Roman of Chemistry department as you all know is quite unorthodox..here is his Quiz. It is Monday Morning and it is time for Prof. Roman’s unusual quizzes to his chemistry class. What is the ...
10
votes
1answer
1k views

Elementary, my dear …

My list for today Iodine-Sulfur+Americium-Scandium:Phosphorus Iodine-Titanium+Molybdenum+Thorium+Yttrium-Lithium:Helium Praseodymium+Oxygen+Vanadium+Erbium+Boron+Sulfur-Lithium:Aluminum ...
20
votes
2answers
1k views

Setting up the trap

Start with eleven in one e four e six; add what is missing from otherhood, oke, icks; improving position, go upwards by one; mix up for organs, remove fifty-one. Add to the end an ...
11
votes
1answer
207 views

I'm yearning in grey

I have made films on wood. I have stopped by a park. Going outside late makes me happy. I'm yearning in grey. What is my name?
5
votes
4answers
186 views

Problem with heights - Riddle

I hate heights. As soon as I can see how far away the ground is, I'm filled with this uncontrollable fear and urge to get down -any survivable way to get down is better than this. My captors seem ...
17
votes
1answer
770 views

A Tale of Snake and Coffee

I had the strangest dream last night: I am in field of red stones. I start walking around until a smell of fresh coffee catches my attention. I follow it until I see a large cave, and in its ...
-4
votes
1answer
110 views

Prime Sequence…a little bit Unusual about the Missing Members

What are the Missing Members in this Prime Series? what is the Significance of this Sequence? $19$, $17$, $13$, $?$, $?$, $3$, $2$
-6
votes
2answers
85 views

Math to Math Nerdy Love Expressions…Fillin the Blanks [closed]

1) My Love for you is like $L= m.C^2$...because it grows xxx with speed of xxxx. 2) My Love is like a xxxx it goes on xxxxx. 3) You must be the xxxxx xxxx of xxxxx because I feel irrational ...