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1500 questions
28
votes
2 answers
Pseudoku: A Game of Finding Order in Chaos
You are Pat Doe, a lowly Sudoku puzzle-maker eking out a living by producing hand-made Sudoku puzzles.
After an exhausting eight hours, you've just completed your last Sudoku grid for the day. Unfortunately, it's only after you've completed the grid…
COTO
- 10,083
- 36
- 91
28
votes
7 answers
Two Knights, two Bishops, two Rooks and two Kings on a 4x4 chessboard
Place two Knights, two Rooks, two Bishops and two Kings on a 4x4 chessboard, so that:
1) The Kings are not attacked at all.
2) All other pieces are attacked exactly once.
Ignore color, so every piece attacks every other piece whose square it can…
Tweakimp
- 1,820
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- 22
28
votes
7 answers
A Special Parking Lot
There is a special kind of parking lot that stores special 1x1 cars that only can move to adjacent squares not including diagonals if they are empty (provided no car occupies the square). Every car occupies exactly one square and no more. The exit…
user35295
28
votes
4 answers
Same word fills all the blanks
Inspired by the famous puzzle (origin unknown to me)
Fill in the blanks in the following sentence using the same word OR its split versions (not anagrams).
A _____ surgeon, was _______ to operate on his patient because there was
_____.
My…
DrD
- 39,225
- 7
- 76
- 323
28
votes
1 answer
Lost at sea, I'm out of this world
At first, I'm hazy
With a switch, I'm explosive
Lost at sea, I'm out of this world
Without you, I'll be taught
What am I?
rybo111
- 4,945
- 3
- 25
- 51
28
votes
3 answers
Stonehenge - the true purpose
During the last year I've been working on solving the mystery behind these funny stones in Wiltshire, England. Now I'd like to have you join in on the fun and hope you enjoy discovering the true purpose of Stonehenge:
Note that I've added some…
Avigrail
- 3,020
- 1
- 30
- 66
28
votes
1 answer
How many silver marbles does Paul have?
Peter, Paul and Mary have between them 282 marbles.
Though of the three friends, it is Peter who has the most marbles, he is the one with the fewest silver marbles, just the square root of the number of all his marbles.
On the other hand, Mary,…
Bernardo Recamán Santos
- 18,674
- 2
- 37
- 218
28
votes
2 answers
Transport Networks - An Introduction
This is a new type of puzzle and I don't know yet, whether or not they are fun to solve. So what better to do with them, than throw them at the best puzzlers out there and see what happens? Feedback welcomed.
Here are the first few "Transport…
BmyGuest
- 18,141
- 1
- 69
- 147
28
votes
3 answers
12 Birds in the petshop
You decided to buy 2 birds from a pet shop and went to a pet shop for it. There are 12 budgerigars at the pet shop and you want a male and a female for your home. You cannot distinguish the gender of birds by just looking at them. So you ask for 2…
Oray
- 30,307
- 6
- 61
- 215
28
votes
3 answers
Grandma's Rebuses
DISCLAIMER: This story is fictional
My dear grandmother passed away two years ago, with her husband, Ed, sitting solemnly by the side of her hospital bed.
She was always kind, friendly, but also very intelligent and unusual - and Ed has since gifted…
TheGreatEscaper
- 11,946
- 1
- 42
- 96
28
votes
2 answers
My Uncle's Music Box
Unfortunately, my favorite uncle just passed away. He's the one that taught me all about puzzling, and supposedly found Davey Jones' treasure in his youth. I miss him very much, however, I just received a package from his Attorney, containing this…
Sconibulus
- 19,731
- 1
- 45
- 114
28
votes
9 answers
A clock for 2017
Design a clock where each number from 1 to 12 is obtained as an arithmetical operation using each digit of 2017 exactly once: for example, 4 could be made as $2\times 7-10$.
mau
- 2,095
- 1
- 18
- 37
28
votes
4 answers
Another riddle for scientists
I have one start
and usually many endings.
I'm very smart
when guiding you to sorted findings.
For you I offer
many useful suggestions
but I only answer
to "yes-no" questions.
(The title gives you a hint, by the way)
zlobi.wan.kenobi
- 2,001
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28
votes
3 answers
I was struck by lightning
My story is not a happy one, but I'd like to share it.
In my early days I sunbathed a lot.
I also liked water. And sand.
I looked at it through my glasses.
I had all the time in the world to watch them all.
Later I used to like spring.
It…
oleslaw
- 6,926
- 1
- 29
- 51
28
votes
7 answers
I'm invisible until I'm lost
My first ever try at a riddle, hope you guys enjoy!
I'm invisible until I'm lost.
Once you lose me, you must pay the cost.
Among the newborn I stay.
Until they learn how to slay.
Two faces have I
One is true and the other to lie
What am I?
BlueFire
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