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Top new questions this week:

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 ...

riddle word  
asked by Don Thousand 27 votes
answered by David Lewis 28 votes

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 ...

word enigmatic-puzzle letters  
asked by Stiv 24 votes
answered by HTM 24 votes

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 ...

sudoku construction  
asked by athin 18 votes
answered by Deusovi 20 votes

On The Subject of ​?​?​?

(This is the last 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. Note: Unlike ...

knowledge enigmatic-puzzle metapuzzles  
asked by Deusovi 17 votes
answered by mbingo 13 votes

A six letter Name

Can you figure this out? It's a name And a Surname An island A code Three US states And also elements A six letter word that ends in a college, that will need some ...

word knowledge  
asked by DEEM 17 votes
answered by Tom 27 votes

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 ...

logical-deduction no-computers combinatorics checkerboard  
asked by athin 17 votes
answered by Rand al'Thor 20 votes

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 ...

enigmatic-puzzle rubiks-cube  
asked by Deusovi 16 votes
answered by mbingo 11 votes

Greatest hits from previous weeks:

What is the maximum number of solutions a Sudoku puzzle can have?

I've seen Sudoku puzzles that can be solved two different ways. Referring to a traditional 9x9 grid: Is it possible for a Sudoku puzzle to have more than two solutions? If so, what is the maximum ...

sudoku solvability  
asked by WendiKidd 55 votes

How did the police know?

One night, a man receives a call from the police. The police tell the man that his wife was robbed, murdered, and her body dumped in a remote location, and that he should reach the crime scene as soon ...

logical-deduction story mystery situation  
asked by Aggie Kidd 41 votes
answered by A.D. 82 votes

I am the first in Earth, What am I?

I am the first in Earth, The second in Heaven. I appear twice in a week, Never in a month, Once in a year. And I am found in the middle of the sea. What am I?

riddle  
asked by coDe murDerer 31 votes
answered by Daedric 47 votes

What is the number of the parking spot?

One needs to find the number under the car.

lateral-thinking pattern  
asked by klm123 54 votes
answered by klm123 47 votes

3D wooden puzzle

I got a 3D wooden puzzle in which you are supposed to rebuild. I took pictures of the 6 pieces (click images to enlarge): I found this image on the Internet. I believe it's the solved version: ...

mechanical-puzzles real  
asked by warspyking 9 votes
answered by bkuehner 15 votes

Not the usual "8 5 4 9 1 7 6 3 2 0" sequence puzzle

This is not the usual $8, 5, 4, 9, 1, 7, 6, 3, 2, 0$ sequence puzzle, which the answer of the pattern is Numbers are in alphabetical order The sequence is: $3, 9, 1, 5, 7, 0, 2, 4, 8, 6$. Can ...

number-sequence  
asked by u_ndefined 4 votes
answered by kraby15 16 votes

How can one solve a Rubik's cube without relying on guides/algorithms?

I am wondering who is able to solve Rubik's cube just by thinking without knowing the rules behind it. As far as I know the inventor Ernő Rubik was professor of architecture and he intended to help ...

rubiks-cube  
asked by Thomas 33 votes
answered by Jaap Scherphuis 29 votes

Can you answer these questions?

A short bio of me, guess what I am or I'll end up in the sea

My mother died giving me birth at an old age. I was surrounded by romantics as much as pragmatics. People still judge me on my skin color. I have two enemies but a very good friend, who has matured ...

riddle  
asked by user65573 4 votes

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 All letters in the first word are unique. ...

enigmatic-puzzle visual anagram  
asked by Jens 7 votes
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