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1500 questions
33
votes
4 answers
Unintelligible Batch of Wingdinglish
How do you even read these runes?
Note: Click image for full size
LatchArcheryLeader
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33
votes
5 answers
Biggest army on a chessboard
Reminder:
Everybody knows that we can place 8 queens in a chessboard without threatening each other (see here). Same reasoning can be applied for knights, bishops, rooks and kings. Giving respectively 32 knights, 14 bishops, 8 rooks, and 16 kings. …
Untitpoi
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33
votes
10 answers
Liar liar pants on fire
Here is an easy and straightforward liar puzzle.
Four people are in a room, stack reader, boboquack, Rand al'Thor and Brent Hackers.
stack reader states that at least 2 of the other 3 are liars.
boboquack states that Rand al'Thor and Brent…
stack reader
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33
votes
1 answer
Can a chess player promote all pawns to queens?
In standard chess rules, a pawn is promoted if it reaches the far side of the board. Usually, the pawn's owner chooses to promote it to a queen.
Is it possible for one player to eventually promote all their pawns to queens, in a legal game of chess?…
TenMinJoe
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33
votes
16 answers
Brothers, cousins, and foes - what am I?
I am one of many siblings in a great family.
We are the most perfect of our race,
Because each of us has a clear worst enemy.
My foe - I know him well - is much like me,
But we continually fight each other;
We never hide our hatred for each…
Rand al'Thor
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33
votes
2 answers
The Alien Message: What does it mean?
"Three hours ago, we received a urgent message from one of our exploration agents. I'm just going to play it for you in full."
"I'm on Planet 193843. I've found a large stone block, 2.64 meters high, covered in strange runes... Yes, I know it's…
qwertyu63
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33
votes
6 answers
A Six-Faced Puzzle
Here is a grid-deduction puzzle, whose mechanics I have seen under several names such as 'Castle Wall', which is the one I'll use here.
The goal of Castle Wall is to draw a loop enclosing all the numbers in the grid, such that the number represents…
TheGreatEscaper
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33
votes
7 answers
Why does the 4x4 Rubik's cube have parity cases, while the 3x3 does not?
I'm a little uncertain as to why these two parity situations occur on the 4x4 Rubik's cube. The first parity case that can occur is this one, where an edge is simply flipped upside down:
The second one that can occur is this one, where two edges…
user20
33
votes
5 answers
I am a car. What is the car?
There's a car that exists. If you take off the first and last letter it's still a word. If you take off the first and last letter again it's still a word. If you take off the first and last letter again it's still a word. What is the car?
Teri
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33
votes
23 answers
Unfortunately, you died
Your soul is on its way to the afterlife when suddenly you arrive in a room.
You look around and notice six humanoids staring at you.
You walk toward them and you can suddenly hear them talk between themselves.
They said "Not another one of…
stack reader
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33
votes
5 answers
What is a Racist 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 Racist Word™. (Disclaimer: In case anyone feels nervous about this…
paolo
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33
votes
3 answers
The ping pong puzzle
Three friends ($A$, $B$ and $C$) are playing ping pong. They play the usual way: two play at a time, the winner stays on, and the loser waits his/her turn again. At the end of the day, they summarise the number of games that each of them…
Numberknot
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33
votes
2 answers
A moderate visual number puzzle
In the following diagram, each red dot represents a positive number. The dot-numbers on each of the five circles spell out either a word (each dot corresponding to a letter) or a number (each dot corresponding to a single digit), always starting at…
Rand al'Thor
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33
votes
3 answers
The Cryptic Writing On The Wall
The goal is simple: solve the cryptic clues to get a Only-Connect wall, consisting of 16 words, which then must be grouped into 4 groups of 4 words each sharing a common property.
Investigate the beginnings of combinatorics (4)
Clean the…
Ankoganit
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33
votes
8 answers
Will the ant reach the car?
A car starts distance 1 from a wall then drives away at constant speed $ c $. There is a length of elastic tied between the wall and the car. Remarkably this doesn't affect the motion of the car (in reality the tension would slow the car).…
Colonel Panic
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