Puzzling Stack Exchange
Puzzling Stack Exchange

Most Popular

more tags
1500 questions
31
votes
3 answers

Fun with Flags part 1: something different

We are looking for 4 categories. Other (independently solvable) puzzles of this type: 2, 3, 4, 5, 6, 7, 8, 9, 10.
sarsaparilla
  • 6,090
  • 18
  • 55
31
votes
6 answers

A robot surviving on top of a 3x3 platform

A robot sits in the central square on top of a 3x3 platform. The robot can move up, down, left or right, but if it steps off the platform it will crash and die. You can preprogram the robot to make a sequence of moves, each in one of the four…
Dmitry Kamenetsky
  • 35,897
  • 5
  • 66
  • 276
31
votes
1 answer

Iceberg Cryptography

See if you can extract the message encrypted in this text box: I F Y O U R E H A P P Y A N D Y O U K N O W I T C L A P Y O U R H A N D S I F Y O U R E H A P P Y A N D Y O U K N O W I T C L A P Y O U R H A N D S I F Y O U R E H A P P Y A N D Y O U K…
SlowMagic
  • 13,815
  • 32
  • 108
31
votes
4 answers

Half filled water bottle

If you are given a marker and a transparent water bottle partially filled with water, can you tell if the bottle is half filled or not?
Akanksha
  • 337
  • 3
  • 6
31
votes
2 answers

A trip to the library

I try to go to the library at least once every month, so I've developed a pretty good relationship with the librarian, a nice old man who sometimes teases me about my broad set of interests. Yesterday, for example, I brought him the following books…
NudgeNudge
  • 6,095
  • 1
  • 28
  • 51
31
votes
1 answer

Déjà vu, again?

There is a very special property common to all the words below: ART BAIL LAP LATTE MEAT ON PEAR PEAS RED RUM SCENE SHOT SIGN TINES Stuck? Need a hint? Here's that list…
SlowMagic
  • 13,815
  • 32
  • 108
31
votes
6 answers

Four boys are playing football and one of them breaks a window

Four boys at school are playing football and one breaks a window. No one owns up to doing it but someone gives the teacher an anonymous note saying: hE iS thE CuLpriT? The four boys were: Matthew Mark Luke John Which boy was the one that did it? A…
Shomari Mills-Legerton
  • 451
  • 4
  • 3
31
votes
2 answers

Remove my last letter and I could become lethal

My first 2 letters represents a male. My first 3 letters represents a female. My first 4 letters represents a great male. My whole represents a great female. Which word am I describing?
Paul Karam
  • 2,221
  • 1
  • 15
  • 28
31
votes
4 answers

How did four chessmen disappear?

I was visiting two friends yesterday and found them sitting at a chess table. After a glance at the board, I thought I had interrupted them when they were installing the starting position and I said: "Oh, how annoying, you have set the starting…
Evargalo
  • 6,270
  • 1
  • 19
  • 39
31
votes
3 answers

Snakes on a Plane!! 2

An entry in Fortnightly Topic Challenge #35: Restricted Title 1. Inspired by the title of this xkcd comic, but in no way related or affiliated beyond the shared name. It's a well known fact that any animal without legs finds it quite impossible to…
Alconja
  • 37,250
  • 16
  • 116
  • 164
31
votes
1 answer

Real Programmers

Part of the Fortnightly Topic Challenge #35: Restricted Title 1 Super busy today :$ so here's a riddle My first is nothing at all or maybe everything combined. Adding or subtracting, just depends how it's defined. My second is everything…
stacksfiller
  • 10,545
  • 3
  • 29
  • 54
31
votes
5 answers

Making Things Difficult

An entry in Fortnightly Topic Challenge #35: Restricted Title 1. Factoring the Time Think fast! If you're looking for meaning, these clocks have some for you. Keyboards are Disgusting Gunky keyboards can malfunction; for a deep clean, some boards…
ManyPinkHats
  • 7,127
  • 2
  • 34
  • 49
31
votes
2 answers

A Racing Heart!

This puzzle is about an athletic, hearty person. Therefore, there are 3 pieces of information hidden accordingly: For each clue, including trailing remarks such as "(2 words)", remove all numbers, spaces and punctuation. Color in the grid the cells…
ffao
  • 21,733
  • 4
  • 68
  • 109
31
votes
3 answers

I have two siblings; we're locked in a war

I have two siblings; we're locked in a war. One of them can grind me into the floor. As for the other, he could never win. My razor-sharp wit makes me stronger than him. Who or what am I?
qwertyu63
  • 3,919
  • 19
  • 45
31
votes
5 answers

Two spies throwing stones into a river

There is a puzzle about two spies: Two spies must pass each other two secret numbers (one number per spy), unnoticed by their enemies. They have agreed on a method for doing this using only 26 indistinguishable stones in advance. They meet at a…
klm123
  • 16,216
  • 8
  • 64
  • 125
1 2 3
…
99 100