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1500 questions
81
votes
3 answers
The Folding Maze
Four years ago, I drew a really nice maze. I have recreated it with the wonders of MS Paint for all of you to enjoy.
Just begin at the green START, exit by the red arrow, and don't pass through black lines.
Here's the gimmick: You are allowed to…
greenturtle3141
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81
votes
1 answer
Empty sudoku puzzle
The rules are the same as for a normal sudoku puzzle. The only thing different is that instead of numbers for clues, you have greater than/less than (> <) signs between the cells.
Have fun solving!
Maria Ivanova
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81
votes
4 answers
Alice and the Fractal Hedge Maze
This is an entry to the 12th fortnightly challenge.
Alice: Would you tell me, please, which way I ought to go from here?
Cheshire Cat: That depends a good deal on where you want to get to.
Alice: I don't much care where...
Cheshire Cat: Then…
Mike Earnest
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80
votes
4 answers
The mother of all age-of-the-captain riddles
A few days ago, as I was delving into the mess in my grand parents' attic, I found an impressive ancient book that was written in a language that I had never seen before.
"This book is a collection of riddles printed in the eighteenth century."…
Arnaud Mortier
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80
votes
2 answers
A rude security guard
I was walking down a street, when I see a door, with a security guard.
A man approaches him, and the guard flips a middle on him.
"Well that escalated quickly." you think.
The man, unfazed, replied "4."
The guard allowed him to pass.
When another…
bleh
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79
votes
6 answers
This is it. This is the one. Save your wife
You now know where your wife is, so you hop on a plane and fly over to France. You reach the house and burst through the front door, only to find the house deserted. In despair, you slump into a chair in the kitchen. You then notice a note pinned…
Beastly Gerbil
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79
votes
11 answers
Poisoned Iced Tea
Two girls went to dinner together and both ordered iced tea. One girl pounded down five of them in about a minute, and the other took her time drinking one.
The girl who drank one died, while the girl who drank five survived. However, all of the…
generalcrispy
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79
votes
15 answers
Making π from 1 2 3 4 5 6 7 8 9
There have been two other questions here and here that are similar to this one, but this changes the rules up a little.
Your job is to approximate $\pi$ using the sequence of digits (in order):
1 2 3 4 5 6 7 8 9
with operators inserted between them…
Glen O
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78
votes
28 answers
You have one question to tell whether the number I'm thinking of is 1, 2, or 3
This is an interesting puzzle which was passed to me by a friend some time ago. I do know the answer, but will refrain from self-answering on this to see where it goes.
I'm thinking of a number: 1, 2, or 3. You may ask me one question, which I will…
user20
78
votes
3 answers
A secret polynomial
Alice has a secret polynomial $P$ with positive integer coefficients. When Bob gives Alice a positive integer $n \neq 2016$, Alice replies with the value of $P(n)$. After doing this several times, Bob guesses the value of $P(2016)$; he wins if he is…
rnaylor
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78
votes
1 answer
Honeycomb: a hexagonal grid of letters
This puzzle consists entirely of one image, attached below. The image is large and you will need to zoom in to see some of the details. There is no hidden information, only what you can plainly see. The answer is one word.
Seren
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78
votes
12 answers
Turn off all lights in a ring-shaped palace
Not a very difficult question, but one I enjoyed nonetheless and wanted to share with the community.
You are a servant in a palace. The palace is in the shape of a circle, and you do not know how many rooms there are in the palace.
Some of the…
Oria Gruber
77
votes
5 answers
The Thirteen Doors of Aj Noc'la
An entry in Fortnightly Topic Challenge #39: Deep Down in the Dungeon 1.
Having finally defeated the tyrannical wizard Aj Noc'la, your party makes its way through the door at the rear of the throne room. Presumably the dimly lit archway leads to…
Alconja
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77
votes
3 answers
90% of people will fail this puzzle!
Those of us who have a Facebook account probably have lots of connections in it. Some are actually real, but then there are the rest of them -- the ones that use Wiktionary instead of real dictionaries and post "puzzles" like this... Ugh, do you…
ffao
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77
votes
4 answers
A weird deleted Puzzling.SE question
So I was just browsing Puzzling as usual, when I stumbled upon a... to put it mildly, "strange" question:
The question seems to be permanently deleted now...
For those who disabled GIFs in their browser, here are pictures that together form the…
user14478