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1500 questions
60
votes
1 answer
What should I call this poker hand with a straight?
Hmmm, looks like a good hand... I'm certain I can make a straight out of this! What should I call it? (6 2 8)
Amoz
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59
votes
2 answers
A puzzling image maze!
I was inspired by Rainbow Road Rabbit Hole to make a two-dimensional image maze where each image points to its neighboring rooms. Start here:
Clarifications and corrections:
Reassembly
"Either... or..." statements are inclusive or. This means…
f''
- 33,665
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59
votes
4 answers
Interview Question or Pathbreaking puzzle
I thought this changes the way series of numbers are looked at
1
1 1
2 1
1 2 1 1
Write down the next three lines
skv
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59
votes
1 answer
My dead mom left behind some number code
Background: I actually do not know the answer to this puzzle, but can answer any questions you may have. My mom who is now deceased had this series of numbers written in her notebook, that don't seem to be phone numbers, or any other number in that…
Cain Smith
- 403
- 1
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- 5
58
votes
4 answers
Folding paper into corners
Here is a piece of paper:
Fold it once, and you can get a shape with 9 corners:
Starting with a rectangular sheet of paper and folding twice (along any line), what is the largest possible number of corners that may result?
Rule for counting…
Owen
- 1,479
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58
votes
4 answers
Ghotiy spelling
As some of you likely know, ghoti is an interesting spelling of the word fish.
Using:
the "gh" from "tough"
the "o" from "women",
and the "ti" from "nation"
This is a rather ghotiy way to spell the word. But in the same spirit, what common phrase…
Devsman
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58
votes
3 answers
What is a Cyclone Phrase™?
If a phrase adheres to a certain rule, then I call it a Cyclone Phrase™.
Use the examples below to find the rule. Also find the one error in the chart below. (In other words, one of the phrases below is not really a Cyclone Phrase™.)
Cyclone…
JLee
- 18,202
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58
votes
7 answers
The Circular Prison of Unknown Size
You are the president of a secret society of mathematicians with $n$ members, including yourself. No one in the society knows what $n$ is. The dictator of the world, in an effort to erase mathematics from human history, has finally managed to…
Mike Earnest
- 32,336
- 6
- 92
- 237
58
votes
8 answers
Find a straight tunnel
There is a circular area with radius 1 km. And there is a tunnel, which is just under the surface, but invisible - unless you dig. It is known that the tunnel goes under the area (at least touches it at one point), it is straight and infinitely…
klm123
- 16,216
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58
votes
4 answers
I got ninety-nine problems - so here's another one!
To date, on Puzzling.SE I have contributed (counting: 10, 20, 30...) 99 problems to the site. So to mark my 100th, here's a massive meta-puzzle to celebrate the occasion!
Task
Solve the nine sub-puzzles and meta-puzzle featured in the image below…
Stiv
- 140,467
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58
votes
1 answer
What is a Jeeves Word™?
This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.
If a word conforms to a special rule, I call it a Jeeves Word™.
Use the following examples to find the rule:
Jeeves…
Bass
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58
votes
1 answer
28 Minutes Later
An entry in Fortnightly Topic Challenge #50: Escape Rooms
I open my eyes to find myself lying in a bed in a white room. Sitting up is difficult, as a tangle of wires and tubes are attached to my arms and chest. I'm in hospital. But I have no idea…
Stiv
- 140,467
- 11
- 495
- 752
57
votes
4 answers
Go Pregnant or Go Home
A love story:
First, we met on the dance floor at this place playing loud music.
Soon after we were madly in love!
Before I knew it, we were engaged to be married.
Now, here I am in the backyard turning over soil for her garden instead of playing…
Chowzen
- 25,660
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57
votes
3 answers
Regular Expressions
/straw$/; # (3,5,5)
/\d+safety\d+/; # (6,6,2,7)
/^\@[67]+$/; # (10,2,2,5,3,6)
/(my |the high)way/; # (2,3,2,3,7)
/(Thomas|Richard|Harold)/g; # (5,3,4,3,5)
my $mouth =~ s/\b\w+\b//g; …
Bass
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57
votes
10 answers
A well balanced puzzle: Logic puzzle(s) in visual disguise
This is a rather involved puzzle and might require a bit of stamina. All of the puzzle is in image form. The introduction text is not needed for the puzzle. At the end of the puzzle you'll get a short English sentence. The puzzle consists of…
BmyGuest
- 18,141
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