Questions tagged [open-ended]

NOTE: This tag is currently being debated on Meta. Questions asked under this tag may not fall under the scope of the site. Please be mindful of that when asking a question. Used when the tagged puzzle is open ended to all solvers and could be "bested" at any point, if a given solver has a better solution that fulfills the askers requirements.

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-10
votes
2answers
512 views

Longest $Scramble Sentence$? [closed]

Before we begin, allow me to define what I call a Scramble Sentence, A Scramble Sentence is a grammatically correct sentence, where at least 1 other permutation, of the letters in the sentence, ...
1
vote
0answers
1k views

Woody words, tinny words [closed]

Note: There are some rude words in this question. There's an implicit puzzle in posed in this classic Monty Python sketch (you can also ready the script online). Various words are described as ...
3
votes
5answers
496 views

OE Challenge - Solve faster than fast! Help Steve get out of hell [closed]

Steve is having a rather bad day. Steve has died, and because Steve had a propensity for driving slow in the fast lane, Steve goes to hell. As soon as Steve gets to hell, Satan, Hitler, and ...
2
votes
4answers
467 views

From Puzzle to Riddle to Solution

Your goal is to create a word ladder that goes from the word "puzzle" to the word "riddle" and then to the word "solution". In that order! That is, if it's possible, if not you better show me why not!...
2
votes
5answers
7k views

Longest Homophone Sentence [closed]

Open Challenge: What is the longest complete sentence you can make wherein every word is a homophone? A simple example would be: I threw you. (eye through yew) Ground Rules (more may be added ...
4
votes
7answers
4k views

Find the longest string of words such that the (4 letter) end of one word is the start of the next

Here is an open-ended challenge. Find the longest series of English words such that the final four letters of word $n$ are the same as the first four letters of word $n+1$. Example (3 words) ...
15
votes
3answers
2k views

The Sphinx's Dice

"I'm bored of riddles, I'm going to ask you a question about dice instead", says the Sphinx. "Now, I've got this set of Efron Dice here. There's four dice, and they have these values on their faces:" ...
10
votes
3answers
1k views

Chess Game of Life

A bishop and a rook, of opposing colors, start on opposite corners on the same side of a chessboard, oriented as in the following picture: They then proceed to play a game of cat-and-mouse. Rules ...
11
votes
8answers
7k views

Longest sentence where all words are anagrams of each other

Won, now own. Rules: A “word” is an entry on dictionary.com. A “sentence” is any text that is grammatically correct, has a complete meaning in the English language, starts with a capital letter and ...
-5
votes
3answers
822 views

A quickie for the cryptic crossword enthusiasts: Here is the clue. / Cut cut! / What crazy, bloodthirsty creature remains? (5 letters)

Here is the clue. Cut cut! What crazy, bloodthirsty creature remains? (5 letters) EDIT I added the word 'crazy'. Apologies that I missed this out before. Please use typical cryptic ...
5
votes
4answers
960 views

Word ladder island (formerly dead-end)

Following on from CodeNewbie's question "From Puzzling to Stack Exchange", I thought I would set a problem of my own using the same rules: Rules: In any move, you can either replace a letter, add a ...
23
votes
7answers
3k views

From Puzzling to StackExchange

This is a variation of a game I used to play with my friends in my childhood. You are given a starting word, and using the following operations, you have to reach the target word. The solution that ...
13
votes
3answers
754 views

100 Dwarves vs. the Evil Elf

The following is an extension of 100 Dwarves and a tiny room. The text of this puzzles spoils that one in a minor way, so go read that excellent puzzle first! An evil elf puts $100$ dwarves in a ...
6
votes
2answers
237 views

Anagrammatical substrings

Inspired by this challenge, I have a similar, with stricter rules. Find a word that can be decomposed into several other words (more than one). Those words are not allowed to be proper substrings of ...
3
votes
6answers
459 views

Longest Sentence Where Every Character Pair Repeats $n$ times

BACKGROUND This is essentially a combination of two puzzles: Longest *Sentence* With Only Repeating Character Pairs (which has been shown to be infinite) Longest sentence with each letter repeated n ...
-5
votes
4answers
1k views

Longest Word made from Smaller Words

Objective: Find the longest word, which can be made from concatenation smaller words. Rules: * Words (and smaller words inside) must be findable at dictionary.com * Punctuation (for example ') does ...
1
vote
5answers
2k views

Longest *Sentence* With Only Repeating Character Pairs

BACKGROUND I asked a question about words: Longest Word With *Only* Repeating Character Pairs The goal was to find a word where every character pair was repeated at least once. This was vulnerable to ...
15
votes
8answers
6k views

Longest Word With *Only* Repeating Character Pairs

Inspired by and Opposite of: Longest Word without repeating character-pairs The challenge is to find an English word in which every character pair appears at least twice. ("Word" does not include ...
5
votes
8answers
3k views

Longest Word without repeating character-pairs

What's the longest English word that doesn't contain the same two letters in a row more than once? Good word : too contains to ...
7
votes
2answers
281 views

Renouned Set Theory

Consider the following ten statements: $A$ do not have $B$. Some $C$ are $D$, but no $E$ are $D$. $F$ that are $A$ can still be $G$ if they have $H$. No $C$ that do not have $G$ can be both $H$ and $...
11
votes
7answers
3k views

Longest arithmetic expression where the answer is equal to the number of letters

You can use any mathematical operations represented by English words. These English words must be found in a commonly used dictionary. Spaces are neither letters nor words. You can not use the same ...
21
votes
9answers
4k views

Riddles/puzzles having answer hidden in the question? [closed]

Can you give any example of riddles or puzzles in which the answers are someway "cleverly hidden" inside the question? I think that such examples are more common in word-related riddles, but maybe ...
20
votes
8answers
4k views

Craft the longest Scrabble sentence

This is another challenge along the same vein as similar challenges that have shown up on this site, requiring the puzzle to craft the longest possible sentence given a specific requirement. What is ...
10
votes
5answers
1k views

Knight on the keyboard

You are given a QWERTY keyboard, and are allowed to choose where you wish to start. You are only able type in the same way a knight is able to move on a chessboard (but in this case, on the keyboard). ...
-3
votes
6answers
336 views

Will both workers count the same number? [closed]

Original problem Lets assume that we hire two persons to count passers-by for an hour. One is told to stand still at one spot on the sidewalk. The other one is told to walk 20 meters up and down the ...
75
votes
15answers
14k views

Making π from 1 2 3 4 5 6 7 8 9

There have been two other questions here and here that are similar to this one, but this changes the rules up a little. Your job is to approximate $\pi$ using the sequence of digits (in order): 1 2 ...
3
votes
1answer
513 views

Connecting 3 circular power timers to lights so that they turn for one day on Christmas

My friend gave a question to me. I am not sure if it is an original puzzle, but he has 2 lines of Christmas lights and 3 circular timers with 96 switches apiece. Each switch turns on power for 15 ...
18
votes
26answers
12k views

Building a 2 mile runway on a 1x1 mile island [closed]

You have a 1-mile long x 1-mile wide island. When taking off from a flat runway, a plane requires a runway of minimum length 2 ...
13
votes
19answers
25k views

Find words with the highest proportion of a single letter

Thanks to JoeZ, pacoverflow, isaacg, Sp3000, Novarg, Ram, h34, and all those who contributed answers that have since been beaten. I've accepted JoeZ's answer since he has the most mentions on the list ...
11
votes
1answer
547 views

Bouncing Robots: Graphical Puzzle [closed]

Robots are indicated by the arrowhead shapes and the labels "r", "y", "b", "g". The label obviously corresponds to their color. The aim of the puzzle is to pick up the shapes and put them down in the ...
27
votes
7answers
13k views

The most words that can be made by successively adding one letter to the original word?

What is the largest number of words that can be made by just adding one letter to the original word, where each iteration is a meaningful word? E.g. ...
-4
votes
3answers
2k views

I before E, except in the following sentences:

"I before E" is a common mnemonic that is taught for spelling certain English words, but this mnemonic is often wrong, as pointed out in this Language Log post. The aim of this question is ...
-2
votes
4answers
426 views

What's my number? [duplicate]

I am thinking of an integer $1,2$ or $3$. You can ask me only a single question to which I can reply "Yes", "No" or "I don't know". I will be completely honest. What will you ask me to figure out what ...
-1
votes
2answers
2k views

Longest alphabetical sentence [closed]

What is the longest alphabetized (by first letter) sentence you can construct? For example, consider these "words": be, a, fish, elephant, crashed, dead If this were a sentence, it would be valid:...
5
votes
2answers
2k views

English words with the most consonants, all voiced or all unvoiced

What English words containing only voiced or only unvoiced consonants contain the most? Count each consonant as many times as it appears. Note that this is a question about the sounds (phonemes) ...
7
votes
5answers
1k views

Turn 16 into 25. You have 4 magic spells. Can you do it?

You have been given the number 16. You also have 4 magic spells. You have to use the spells to turn 16 into 25. Each spell changed your number a specific way, but the objective is never altered, you ...
2
votes
1answer
305 views

Memory Enhancement Through Numeric Imagery - What is the longest or best coherent sentence/paragraph/story you can make?

The guy who recited 20k numbers of pi by memory alone used a system where he converted numbers into consonants and then grouped words or sentences together to remember a huge amount of numbers. Here'...
11
votes
11answers
5k views

Longest sentence with each letter repeated n times

Inspiration: This question was inspired by Word sets with no repeating letters Rules: Sentences can be of any length. Every letter used in this sentence, must be used n times. n can be any number. ...
5
votes
4answers
2k views

pairs of anagrams where the two words sound and look very different

This is a question about pairs of anagrams capable of flavouring puzzles as memorable and surprising because the two words are so different. One of my favourite such pairs is chesty and scythe. These ...
1
vote
3answers
365 views

Object Representation [closed]

Background It isn't a common art style, but it is still done: using letters for form in pictures. Sometimes, people create art using only letters. Now, let us choose a word, i.e. Cool. 'Cool' can be ...
61
votes
19answers
9k views

Growing anagrams - What is the longest possible list forming a sentence?

This is a challenge for word-puzzle lovers. It might be a bit more of a game than a puzzle, but I think it is not limitless in it's answers, so a final answer could be found (eventually). What is the ...
3
votes
5answers
5k views

Longest Calculator Word?

Current Best; Babingtonites = 5371207621898; 13 letters We all know from fooling around with a calculator at some point in our lives, the when we turn a calculator upside down we can make words. For ...
-6
votes
3answers
447 views

Shortest sentence with 2 sets of synonyms?

Current Best: 13 characters This time I'm asking you guys to determine the shortest possible grammatically correct english sentence that includes 2 pairs of synonyms (different words that mean the ...
1
vote
4answers
667 views

Find the longest arithmetic expression with value equal to number of letters in its english representation

The expression twenty minus five has 15 letters (we ignore spaces) and also has the arithmetic value of 15. You can use standard math constants, operators and ...
13
votes
14answers
4k views

Shortest sentence with two auto-antonyms

You have to use two words that are each their own opposite (auto-antonyms, contronyms, contranyms or whatever you want to call it) in the same sentence. This means that each of the two words in used ...
-4
votes
2answers
4k views

Maze Generation Algorithm [closed]

You must design an algorithm for a 16x17 rectangle grid. Each "cell" is either a wall or an opening. This algorithm must achieve a maze without long hallways in 1 general direction, and must have dead ...
22
votes
2answers
3k views

Open-ended challenge: Find the longest morsagram word pair

The idea for this challenge stems from this posting on ComputerScience (beta). It is established (see above link), that Morse-code requires the 'space' between individual character to be uniquely ...
13
votes
6answers
3k views

Can you solve those laser puzzles? (puzzles created by the community) [closed]

So, I was bored and I made a small game for this site! In this game the user who solves the previous puzzle gets to create the next one and they will always be more complex. Website link and string ...
6
votes
4answers
622 views

The Longest Word Made from Specific Chemical Symbols

So, my first question on this topic was answered fairly quickly with quite a long word, so I thought I might post a different version of the puzzle The idea this time is similar to last time: you ...
43
votes
9answers
22k views

The Longest Word Made from Chemical Symbols [closed]

So, as you probably know, each and every element in the Periodic Table has its own unique chemical symbol, which is either one, two, or three letters long. For instance, Oxygen is represented as O and ...