Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Top Questions

0 votes
0 answers
13 views

Riley Riddle #368

8 votes
2 answers
60 views

Excellence? Perfection? Success?

6 votes
1 answer
164 views

Is this maths equation leading me through the first or second door?

0 votes
0 answers
70 views

Pipes and Tanks' Network

5 votes
1 answer
382 views

Mensa IQ app: four boxes with four numbers each

7 votes
6 answers
1k views

Beware of raining cephalopods

9 votes
1 answer
430 views

Reconstructing the Candidates Tournament 2018

0 votes
0 answers
59 views

Who am I in this cruel world?

0 votes
1 answer
36 views

Word Arrangement Machine Problem

3 votes
1 answer
162 views

When you look at this try not to get dizzy!

3 votes
2 answers
198 views

If the door in Monty Hall is opened by a person without knowledge of where the prize is, and also does not reveal prize, do the odds change?

1 vote
1 answer
46 views

My Fill-the-circles puzzles (Set #3)

14 votes
2 answers
2k views

Checkmate N Kings with M Knights

1 vote
0 answers
100 views

All twelve the same

13 votes
1 answer
1k views

Turn two cubes into one!

16 votes
2 answers
1k views

The universal ticket

9 votes
1 answer
682 views

The Queen of Starts - Is Her Bark Worse Than Her Bite?

26 votes
6 answers
5k views

Checkmate 30 kings with rooks

0 votes
2 answers
90 views

What is the measure of $\angle{BAE}$ and the length of $BE$ and $ED$ in a square?

0 votes
2 answers
128 views

Is this Rubik's cube broken?

6 votes
1 answer
762 views

Feels like you have seen this many times

3 votes
1 answer
93 views

Find the 3 Item Amounts

0 votes
0 answers
44 views

The operator acts on two numbers to give the following outcomes [closed]

1 vote
0 answers
100 views

A tie knot algorithm puzzle

14 votes
1 answer
690 views

Is Daryl's Mail Legit This Time?

8 votes
1 answer
547 views

Symmetrical Chess Position With No Legal Moves

3 votes
1 answer
327 views
+350

A message, for you only!

2 votes
1 answer
264 views

Some say I'm part of the solution

4 votes
1 answer
162 views

An ever-changing riddle

4 votes
2 answers
405 views

Unclutch those pearls

6 votes
2 answers
112 views

What is the ideal strategy in this randomised-goal tic-tac-toe variant?

1 vote
1 answer
106 views

The best way to place circles into a square [duplicate]

10 votes
2 answers
2k views

Crime and Punishments - Apologies in Advance

0 votes
1 answer
56 views

Find the last number in the pattern [closed]

15 votes
1 answer
449 views

The Cryptic Safe

7 votes
2 answers
193 views

The Pawn March Problem

8 votes
1 answer
597 views

A most important riddle

-3 votes
0 answers
76 views

Need help cracking encrypted hexadecimal code [closed]

6 votes
2 answers
325 views

Taking turns adding a number 1,2,3 to a 3x3 matrix without repeating numbers in the rows or columns: does the first player always win?

10 votes
1 answer
285 views

The favorite movie puzzle

0 votes
6 answers
590 views

How can you drive back without refueling? [closed]

3 votes
2 answers
264 views

The longest path of edges on a 3x3 grid

4 votes
3 answers
198 views

Move two matches so that no triangle remains [closed]

8 votes
2 answers
204 views

I am used to modify a sentence

18 votes
3 answers
699 views

Find the Two Item Amounts

-2 votes
0 answers
57 views

Try to find the correct analogy according to given data [closed]

2 votes
1 answer
181 views

This was not my original idea

6 votes
2 answers
217 views

The Rook's Hassle


Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.