Hottest Questions This Month - Puzzling Stack Exchange

11 votes

8 answers

4k views

Can you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

Hemant Agarwal

3,343

modified Jul 4 at 2:43

37 votes

2 answers

2k views

A Colorful Explosion

PuzzlingFerret

3,036

modified Jul 1 at 14:15

24 votes

3 answers

2k views

Reconstructing Euro results

Oscar Lanzi

886

modified Jun 29 at 18:57

30 votes

1 answer

4k views

Are you radical enough to solve this SURDOKU?

Markus

1

modified Jul 17 at 17:32

9 votes

1 answer

3k views

Explain why "Calf" is the answer to "Ice mass broken off a little lower?"

juicifer

11.7k

modified Jul 3 at 12:32

23 votes

1 answer

3k views

What’s the highest salary the greedy king can arrange for himself?

AxiomaticSystem

11.5k

modified Jul 1 at 2:01

14 votes

3 answers

800 views

Fill the grid subject to product, sum and knight move constraints

Bubbler

16.3k

answered Jul 8 at 0:57

9 votes

3 answers

2k views

Visiting every digit

bobble

10.3k

modified Jun 25 at 15:55

14 votes

4 answers

889 views

What is the maximum number of people who speak only 1 language?

Delvecchio Simone

1

answered 20 hours ago

22 votes

1 answer

2k views

A puzzle from YOU to ME ;)

Daniel Wagner

111

modified Jun 27 at 15:51

28 votes

1 answer

1k views

Go the Distance

Lukas Rotter

11k

modified Jul 9 at 17:04

6 votes

2 answers

1k views

11 trees in 6 rows with 4 trees in each row

psmears

1,472

modified Jul 5 at 15:04

11 votes

2 answers

2k views

Signature doughnut from a city

David Robie

567

modified Jul 17 at 5:13

5 votes

2 answers

867 views

8x8 grid with no unmarked L-pentomino

Bubbler

16.3k

modified Jul 8 at 8:52

9 votes

2 answers

1k views

Guessing whether the revealed number is higher

ralphmerridew

4,542

modified Jul 3 at 14:00

13 votes

1 answer

1k views

Next date in the future such that all 8 digits of MM/DD/YYYY are all different and the product of MM, DD and YY is equal to YYYY

hexomino

138k

modified Jun 27 at 16:09

17 votes

1 answer

1k views

Just the two of us

PDT

16.2k

modified Jul 17 at 11:42

11 votes

1 answer

885 views

It was the second, but we were told it was the fifth

Bubbler

16.3k

answered Jul 5 at 8:11

11 votes

1 answer

2k views

What's the price of banana?

Etack Sxchange

445

modified Jul 12 at 13:43

5 votes

3 answers

759 views

Is it possible to arrange the free n-minoes of orders 2, 3, 4 and 5 into a rectangle?

Bubbler

16.3k

answered Jul 2 at 5:04

10 votes

2 answers

439 views

Is it possible to have a double miracle Sudoku grid?

bobble

10.3k

modified 22 hours ago

17 votes

1 answer

1k views

Can White still castle? #2

Элси Ринген

199

modified Jul 15 at 19:43

17 votes

2 answers

654 views

In a circular tray of radius 1, arrange coins of radius 1/2, 1/3, 1/4, 1/5 so that none of them can move independently

bobble

10.3k

modified Jul 1 at 13:43

4 votes

3 answers

818 views

Eliminate some numbers so that each of the three rows contains the numbers 1 through 9 each exactly once

catpop

1

modified Jul 13 at 16:34

2 votes

8 answers

917 views

Find a more elegant explanation for the sequence 01, 10, 13, 20, 25, 30, 37, 40

Will.Octagon.Gibson

13.5k

modified Jul 8 at 19:29

15 votes

1 answer

687 views

Tombs of Ancients

Jafe

78.9k

modified Jun 28 at 15:50

13 votes

1 answer

666 views

Given a special name

Stiv

146k

modified Jul 11 at 13:19

10 votes

1 answer

589 views

Keep your ----- ◯ and find the answer!

Prim3numbah

37.5k

modified Jun 22 at 19:11

7 votes

1 answer

1k views

How much is USA - Brazil?

Victor Stafusa

9,431

modified Jul 4 at 3:07

4 votes

2 answers

474 views

Maximizing row and column products in a 4x4 grid

AxiomaticSystem

11.5k

modified Jul 17 at 23:46

12 votes

1 answer

585 views

Worship and Wandering

Jafe

78.9k

modified Jun 28 at 12:00

6 votes

2 answers

745 views

What is a Pisa Word™?

Lukas Rotter

11k

modified 2 days ago

10 votes

2 answers

570 views

Fill the triangular grid using the digits 1-9 subject to the constraints provided

M Somerville

103

modified Jul 13 at 12:52

11 votes

1 answer

420 views

Different letters, different grids

PDT

16.2k

modified Jul 7 at 11:36

6 votes

1 answer

614 views

Determine if N is zibbable [closed]

Jaap Scherphuis

53.9k

modified Jul 18 at 5:09

4 votes

1 answer

1k views

What is a Very Frighteningly Dangerous Word™?

oAlt

6,945

modified Jun 24 at 3:12

5 votes

1 answer

892 views

Just another basic puzzle

Deusovi♦

148k

answered Jul 7 at 17:41

8 votes

1 answer

1k views

Wait a minute, this is 1 across!

oAlt

6,945

answered Jul 2 at 5:46

10 votes

1 answer

409 views

"Shining Composer"

Ankoganit

19.7k

answered yesterday

4 votes

4 answers

519 views

Revealing the least helpful of three numbers

Nitrodon

354

answered Jul 11 at 23:57

11 votes

1 answer

748 views

Scully’s foot fungus cream – A who-has-done-this crossword

Gareth McCaughan♦

120k

modified Jul 10 at 22:53

6 votes

1 answer

571 views

What should the next step be in this Kakuro puzzle?

Bubbler

16.3k

answered Jun 25 at 0:00

3 votes

3 answers

548 views

Knights, Knaves, and Spies

Greg Martin

1,171

modified 2 days ago

5 votes

2 answers

454 views

Can white checkmate in 1 move?

Tim Seifert

2,497

modified Jul 18 at 8:47

9 votes

1 answer

611 views

Why did the general choose this as the exact time of attack?

DqwertyC

8,333

answered Jul 5 at 17:00

5 votes

1 answer

577 views

What were the last three single moves?

Will.Octagon.Gibson

13.5k

modified Jul 16 at 9:56

8 votes

1 answer

307 views

Rectangular representation (ignore the nonsense)

M Oehm

62.2k

answered Jul 15 at 9:29

8 votes

1 answer

635 views

Bulls and Cows meet Sudoku!

Jeremy Dover

28.8k

answered Jun 24 at 22:06

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