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1500 questions
27
votes
19 answers
Ant walking on a number line
An ant walks on a number line, starting at location $x=7$. Each second, it randomly moves one space either left ($-1$) or right ($+1$), with equal chance. At $x=0$ and $x=10$ are drops of honey; the ant stops moving when it reaches one of them. What…
xnor
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1 answer
A Puzzling Sudoku (Warning: Hot!)
An entry in Fortnightly Topic Challenge #47: "Wacky Sudokus"
A Sudoku with an oddly familiar shape. Here's a Penpa Link.
Rules:
Normal Sudoku rules apply
(Special) Thermometers:
The digits in the thermometer shapes must be strictly increasing…
Lukas Rotter
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27
votes
6 answers
A hard to find country
I'm a European country, can you find me?
I share a border with France
I'm bigger than Belgium
I have red in my flag
I'm smaller than Poland
I'm south of Denmark
I have no cross in my flag
I have direct access to the Atlantic ocean
I have a "R" in my…
Keelhaul
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27
votes
4 answers
Double whammy murder case! What happened?
It's Friday the 13th, and you and a group of 7 friends from the "Survivor" club belonging to University LeMao (A, B, C, D, E, F, and G) go camping.
You're all pretty good friends, and talk quite a bit during their hike up the Mountain named…
Aify
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27
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1 answer
Tubariphobia - The fear of pickles
There are many topics that polarize. But not a single topic comes close to the one and only age-old question that some claim is the root of all division between people: "Are pickles disgusting or not?"
I'm not taking sides at all here. But since I…
Lukas Rotter
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27
votes
8 answers
Safe combination for your heritage
Phillip, a 68 years old man, was near the end of his life.
Before passing away, he decided to hand to his daughter a piece of paper with the following:
48 7A 2D 38 8B
On the back, there was the following text:
DEATH, what unpleasant surprise.
While…
Ismael Miguel
- 447
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27
votes
1 answer
Looks can be deceiving
Text version:
I saw an "I", he said "it's L"
I saw an "L", he said "it's V"
I saw a "P", he said "it's Q"
"Don't you get it?" he asked
"Don't you see it?" I asked
"No" We both said
What is going on?
DrD
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26
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15 answers
Is this a good question for an IQ test?
Once, in a college class of mine, my teacher defied each of us to elaborate a good question for an IQ test. I proposed the following one.
Is the option C a correct answer for this question? Please select one of the following options.
A - YES B -…
Pspl
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26
votes
3 answers
A Minesweeper Sudoku
My brother created this puzzle, and he wanted me to post this here.
Each 3x3 box contains three mines (those squares also have numbers in them). There are no mines in boxes containing a 1, 2, or 3. Instead, there are 1, 2, or 3 adjacent mines…
Spitemaster
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votes
5 answers
Shortest game of Monopoly
This video claims that the fastest game of monopoly involves 4 turns and 9 rolls of the dice. I am wondering if this is actually the shortest game or can we do better in theory? What is the probability of this game happening in real…
Dmitry Kamenetsky
- 35,897
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26
votes
1 answer
You find a piece of paper in your bag
In your bag you find a piece of paper with a size of 5 x 5.
You want to make it a 6 x 4 but you may only make 1 continuous cut and reposition the pieces.
You are not allowed to bend or twist the paper.
How will you cut the paper to make it a 6 x 4?
user66045
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26
votes
1 answer
A Cryptic Crossword in Indonesian Language (TTS Kriptik Bahasa Indonesia)
The cryptic crosswords are actually new for me and I even struggled to solve one as English is not my first language. So I decided to look for a cryptic crossword in my language, Indonesian... And I found... nothing... not even a single cryptic clue…
athin
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26
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2 answers
Is this a game to you?
All was still as the stranger loaded a cartridge into his shotgun and peered around.
Looking out furtively from deep within the shadowy gorse thicket, he waited, in silence.
They would be appearing any minute now – just here, where the trees…
Stiv
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26
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1 answer
A Slightly Moth-Eaten Integral Sign
The following slightly moth-eaten integral sign:
... can be folded onto the surface of a cube in a way that perfectly covers the entire cube with no gaps and no overlaps.
How can it be done?
(You may notice that the placement of the two little…
plasticinsect
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26
votes
4 answers
A very strange character
My mouth can kill, but my eyes can only damage.
Religious people turn into atheists because of the offhand positions my golf ball is in.
I conceal what I wish to, as small people tend to do.
I'm an air-traffic controller in Dallas, telling some…
msh210
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