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6
votes
2answers
365 views

Need to solve this

I got a puzzle to solve from the guys at my stag party; and I need it solved by my wedding (next Saturday). I spent hours looking at this but I can't find the solution; can anyone help me? I got a ...
14
votes
2answers
1k views

On The Subject of Regular Crazy Talk

(This is part of a series of puzzles written for Timwi for a Secret Santa puzzle exchange, themed around various custom modules for the game Keep Talking and Nobody Explodes. No KTaNE knowledge is ...
5
votes
1answer
150 views

What is a Counterfeiting Word™?

This puzzle 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 Counterfeiting ...
13
votes
2answers
466 views

This new puzzle type needs a name {5}

I believe I have invented a new type of puzzle... What is its name? Colour-blind-friendly version available here. Begin by solving the 9x9 sudoku; each of the 9 symbols ...
5
votes
1answer
152 views

Just Another Sudoku for PSE

Crafted with love for PSE, <3
12
votes
2answers
297 views

Specialist sudoku

I know y'all want to be generalists or something, but here's a little sudoku for (geography) specialists. Enjoy. ABRAU ⋅ AGANTON ⋅ AKUSEKIJIMA ⋅ ALICE HOLT ⋅ ALTENBURG-NOBITZ ⋅ ANJEDIVA ⋅ ...
12
votes
3answers
422 views

Fun with Flags part 3: what used to be

We are looking for 4 countries/kingdoms/sovereign states which do not exist anymore. Hint: Other puzzles in this series: Part 1, Part 2.
-8
votes
0answers
143 views

How can you get 100 using 2,4,6, and 9 by only using each of them once? [closed]

Pls just give me the answer if I get this then I get a pizza party.
12
votes
14answers
3k views

My name is akin to my size

My name is akin to my size Each can be complex or concise I remain within gaze In front of your face Observable under the right eyes My true prefix is one of a kind My infixes are ...
27
votes
1answer
5k views

I hate Valentine's Day

I played her my favorite song on my favorite [prefix] As I gave her a decorated Hallmark [infix] And said, "I hope I'm [suffix] to make you happy" But alas, she said no, and left me alone. Is my ...
15
votes
2answers
3k views

As a noun I’m complete; as a verb, I’m yet to be so

Removing my prefix Makes a familiar sound Removing my infix Helps you search all around Removing my suffix Means to make me whole As a noun I’m complete As a verb I’m yet to be so ...
5
votes
1answer
463 views

I burn what you can’t protect

My prefix is not acquitted My infix demands respect My suffix is a price I burn what you can’t protect What word am I?
5
votes
1answer
313 views

They may take our Rileys, but they will never take our Riddles

Another Riley Riddle, with a small difference... My prefix can mean my whole My suffix is commodity control Find a room for urgent infix removal And a cheeky tipple is left for approval As ...
5
votes
3answers
313 views

Three is the key

Another puzzle in the spirit of the Density™ puzzle. This one requires coordination plus some basic math. Enjoy! Final answer: (7) Hint 1 Hint 2 Hint 3
0
votes
3answers
208 views

How to rephrase a sign text with a limited alphabet, but retain the meaning and humor?

I am creating a goofy sign for a pool using a vinyl letter set, which contains a limited alphabet of upper and lower case letters: AAABBBCCDDEEEFFGGHHIIIJJKKLLMMNNOOOPPQRRRSSSTTUUVVWWXXYYZZ ...
10
votes
2answers
965 views

New published work denied brewski robbery

Cryptic crossword clue: New published work denied brewski robbery (4,2) The answer is ‘hold up’ but I don't know why? I'm not understanding where this answer is coming from in the clue. Synonyms for ...
17
votes
4answers
2k views

Paint 21 Squares of a 7×7 Board Without Forming a Rectangle

Got a nice puzzle from my friend, when he was competing in IWYMIC/IMC 2011. Paint $21$ of the $49$ squares of a $7 \times 7$ board so that no four painted squares form the four corners of a rectangle....
11
votes
1answer
314 views

You should have heard of the answer

My prefix is used in many sports. My infix is a short commanding officer. My suffix is my suffix. My whole is part of a badge. What am I?
3
votes
2answers
128 views

The Mixed-Up Label [duplicate]

Mrs. Hudson had a rather large number of her extended family over for tea, and during this time a particularly mischievous great-nephew took the opportunity to wreak havoc in the kitchen. Seeing that ...
10
votes
1answer
562 views

My suffix is used for cutting, My prefix is used for a house

My suffix is used for cutting, My prefix is used for a house. One can use this to make music, Or use it with a mouse. What am I?
11
votes
1answer
257 views

Clever Collision Counting

A mass of 1,000,000kg is sliding in from the right on a friction-free, level surface. It has a perfectly elastic collision (collision 1) with a stationary 1kg mass. To the left of the 1kg mass is a ...
4
votes
4answers
252 views

Rotating numbers in a 3x3 grid

We have a 3x3 grid numbers like so 9 8 7 6 5 4 3 2 1 Four numbers in any 2x2 sub-grid can be rotated clockwise or anti-clockwise. For example a b c d rotated clockwise becomes c a d b Is it ...
2
votes
1answer
60 views

Rotating numbers in a 2x3 grid

We have a 2x3 grid numbers like so 6 5 4 3 2 1 Four numbers in any 2x2 sub-grid can be rotated clockwise or anti-clockwise. For example a b c d rotated clockwise becomes c a d b Can you obtain ...
11
votes
1answer
322 views

I am musical in function

My prefix can fool you Even though it’s not a pro My infix is a pipe Through which fluids flow My postfix: a conjunction But more of a disjunction I have no intersection I am musical ...
10
votes
1answer
230 views

Double Chocolate: Happy Valentine's Day!

Hikouki (@flight_float) over on Twitter issued a challenge to make a Double Chocolate logic puzzle with a fixed grid pattern, and lots of logic puzzle makers responded to that challenge! Here's my ...
18
votes
1answer
897 views

Your Task Is to Create the World's Hardest Irregular Sudoku!

Ahem, let's formalize your task... A Sudoku is a puzzle consisting of a grid to be filled with symbols, such that each constraining unit contains each symbol exactly once. The regular Sudoku is a $9 \...
8
votes
0answers
297 views

Rosetta's Stone

Another puzzle in the spirit of the Density™ puzzle. Fairly hard I suspect. Enjoy! Final Answer: (6, 7) Version for the color impaired here. Hint 1 Hint 2 Hint 3 Hint 4
4
votes
1answer
78 views

A Tale of Prehistoric Times

Gather round if you want to know A tale of creatures from long ago This rhyme is of the greatest beast To rule the land from West to East All creatures then would tend to run To see the ...
7
votes
2answers
214 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 ...
8
votes
2answers
263 views

There's Still Good In You

My first Riley riddle. Enjoy. My Prefix - A+ Place where work to get done, Suffix might send. My Infix - Procedure that can be performed on a tom or some hen. My Suffix - Place to go with ...
0
votes
0answers
104 views

Two operations, one rule [duplicate]

I'm making my own (esoteric) programming language, and after a while of using the syntax, me and my friend thought that this would make a great puzzle without context. These two are mathematical ...
11
votes
1answer
411 views

What is a 9th K-word™?

This puzzle is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. I also want to thank a math teacher who shared this riddle when I ...
8
votes
4answers
481 views

Running Out of Digits, level 2

The challenge idea, and images are credited to Andrew. You initially have 100 of each digit from 0 to 9. This means you have 1000 digits in total. This count for each digit is shown in the table ...
12
votes
1answer
913 views

Old British Empire

Across 1. #1 in Waterloo: a famous Duke (10) 7. Material essential to hotel management (3) 8. In Cuba, three facing death for unauthorized entry (11) 9. Exotic free-diving spot (4) 10. About-...
12
votes
1answer
775 views

Can you express your answer to this riddle?

I’m a place where you can be In a form, I’m one of three Good or bad? Maybe What is it that is me?
24
votes
2answers
3k views

Is this a game to you?

All was still as the stranger loaded a cartridge into his shotgun and peered around. Looking out furtively from deep within the shadowy gorse thicket, he waited, in silence. They would be ...
6
votes
1answer
219 views

Prefix. Suffix. Infix. Outfix?

My prefix for gains My suffix is bled My infix in veins My outfix is bed What am I?
2
votes
1answer
101 views

Four unfair dice

On a table there are four standard six-sided dice with faces numbered 1, 2, 3, 4, 5, 6 each. Alice starts and chooses a die. Then Bob chooses a die and both throw the dice. The winner is the person ...
5
votes
2answers
154 views

Multiple solutions for Rubik's cube?

I got a novelty cube at as swag at a convention once; it was like a normal cube, but with slogans written on the squares of the cube. If you solved the cube, you could read the slogan. This got me ...
13
votes
9answers
3k views

How could Larry get his friends on a plane without knowing their weights? [duplicate]

This riddle was inspired when I watched the latest (as of this post) episode of Curb Your Enthusiasm (S10E4), in which Larry is faced with a dilemma that he never really solved. The dilemma is as ...
0
votes
1answer
142 views

Two of 18 coins are counterfeit

There are $n=18$ coins, and we know exactly $2$ of them are counterfeit. All counterfeit coins differ from normal coins in weight, but otherwise their weight is not known. They can be heavier or ...
17
votes
1answer
351 views

On The Subject of Rubik's Cube

(This is part of a series of puzzles written for Timwi for a Secret Santa puzzle exchange, themed around various custom modules for the game Keep Talking and Nobody Explodes. No KTaNE knowledge is ...
10
votes
3answers
968 views

Math puzzle - Running Out of Digits

You initially have 100 of each digit from 0 to 9. This means you have 1000 digits in total. This count for each digit is shown in the table below. Now start counting by ones, from 1. Each time you ...
3
votes
4answers
1k views

Series of interestingly increasing words!

What is the next word(more than one is possible!) in the below sequence of words: NO, ATE, OPTS, _ _ _ _ _ ? Note: 1 Only standard English words(as per Oxford English Dictionary) are to be ...
8
votes
1answer
714 views

I place you back on the ground

My infix spells an alphabet, And can put things to action My prefix means to criticise, And undo or inaction My postfix is a sound And to a plant, it is bound As a verb I am found I ...
-6
votes
1answer
197 views

Puzzling set of numbers [closed]

Let's have the following numbers $23, 40, 42, 44, \sqrt{43},\ 128i, 130, \sqrt{172}\ $. What is the relationship between these numbers, taken four at a time? There are only two combinations when you ...
10
votes
1answer
168 views

A corresponding riddle

I've been keeping up a correspondence with a friend, a time-travelling historian. Her latest project has been visiting Camelot to understand the dynamics of King Arthur's knights, and she's been ...
17
votes
1answer
547 views

On The Subject of Blind Alleys

(This is part of a series of puzzles written for Timwi for a Secret Santa puzzle exchange, themed around various custom modules for the game Keep Talking and Nobody Explodes. No KTaNE knowledge is ...
6
votes
4answers
288 views

9 8 7 6 5 4 3 2 1 = 0 and 1 2 3 4 5 6 7 8 9 = 0

There are many number sequence puzzles on this site. I acknowledge them all. Martin Gardner introduced the puzzle with the 9 digit sequence with math operations, reaching 100 as below An old ...
17
votes
7answers
3k views

When was Alice Born?

This is inspired by the following recent question: Living next door to Alice Having failed to figure out where Alice lives, Bob and Charlie endeavour to determine the month in which Alice was born. ...

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