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1500 questions
49
votes
2 answers
Can you stop the rambling rook?
This is a chess puzzle someone showed me a long time ago. If you already know this puzzle please give the others a chance to solve it first. This puzzle was originally created by Otto Gallischek and it was published in Weser-Kurier on 1960-02-25.…
Sleafar
- 18,027
- 1
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- 101
49
votes
3 answers
The vicious wizard...and you!
The vicious wizard Neville has trapped you in the middle of a magical circle of radius $10000$, and you have to find a way out.
Every time you want to take a step (of length $1$) in a certain direction, Neville decides whether you move in that…
leoll2
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49
votes
1 answer
Poor Farmer Ned
Farmer Ned bought a pasture surrounded by a beautiful wooden fence. He built a dividing fence and moved his horses to one end and his cows to the other.
But the next day, most of his new neighbors called to report animals in their yards. It turns…
Amoz
- 26,817
- 2
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49
votes
3 answers
These equations are unsolvable!
I display to you a set of 5 equations that cannot be solved*.
I want you to find the solution:
B + C = 1
B + C + F + G = 4
A + B + C = 7
A + B + C + D + G = 3
A + B + E + D + G = 2
Time’s ticking, don't wait around!
What is the solution to the…
Beastly Gerbil
- 58,036
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48
votes
3 answers
What is the title of this modern art painting, if not "Stars and Stripes"?
This puzzle belongs to the puzzle series: hyper-modern art
Still in the hyper-modern art gallery...
"You know, even now that you have explained to me, how hyper-modern-art works, I still don't quite get it. I mean, the image is just... monochrome.…
BmyGuest
- 18,141
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- 69
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48
votes
5 answers
What does this modern art picture represent?
This puzzle belongs to the puzzle series: hyper-modern art
Two visitors are standing in front of a painting in the hyper-modern art gallery, discussing it.
"Well, I have to admit that I really don't understand hyper-modern art. It seems artists…
BmyGuest
- 18,141
- 1
- 69
- 147
48
votes
2 answers
Vowelburger™ Riddle
(A new kind of riddle)
I ordered 5 Vowelburgers™ with buns and meat only - help me identify each one from the description on the menu!
Meat
Vowelburger™
A
weak
E
cyst
I
succeed
O
secured
Y
letter
Avi
- 10,446
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- 75
48
votes
11 answers
3 doors, three guards, one stone
You are in a room with three doors. Behind two of them, the darkest pit of hell waits for you to make a mistake. The other door leads to heaven and freedom.
Each door is guarded by a guard:
Michael, who tells truth with 75% chance;
Vlad, who lies…
Andrii Chumakov
- 615
- 5
- 12
48
votes
4 answers
Pythagorean Chess: Knishops
In chess, Knights moves to squares a distance $\sqrt5$ away. Bishops move distances $\sqrt2$, $\sqrt8$, $\sqrt{18}$, etc. Both pieces are restricted to non-integer distance moves.
Enter the Knishop, a most potent chess piece capable of moving to…
Johannes
- 4,392
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48
votes
7 answers
Recognizing a Metapuzzle
Creator's note: This puzzle was meant to be released in April 2017 for the metapuzzles fortnightly topic challenge. As you can see, it is currently over a year late. Real-life events interfered, and the scale of the project kept growing. It's…
Deusovi
- 146,248
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48
votes
1 answer
Just a bunch of dudes
My prefix is dude.
My infix is little dude.
My suffix is too loud, dude.
I'm a stand-up dude.
gnovice
- 8,083
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48
votes
5 answers
Do you *really* know Stack Exchange?
Your goal is to guess what Stack Exchange site I am.
Here's a clue to get you started:
[s] -> [f]
Feel free to edit my puzzle!
Good Luck!
-yoshifanatic52
Note: Everything in this puzzle is intentional and part of the puzzle, except this note.…
yummypasta
- 1,259
- 10
- 20
48
votes
3 answers
Tiling with T-tetrominos in gravity
The goal is to tile all the white squares using T-tetrominos when there is gravity pulling the tetrominos downwards like regular tetris. The black squares are void and the ground is just below the bottom row.
If you have played tetris, it is…
Alexandros
- 1,137
- 10
- 16
48
votes
9 answers
IQ test question with diagonal lines in 3x1 grids
Can someone explain me the logic behind this? I think it is hard.
The question is: What comes next in the pattern? (out of the 5 possibilities)
Ozkan
- 597
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- 5
- 4
48
votes
11 answers
Function that is 1 for all positive integers but 0 at 0
A friend of mine had a simple question (at least to state) that I thought I would share: can you, without the use of indicator functions, find a(n) (elementary) function that satisfies
\begin{cases} f(n) = 1,& n \in \mathbb N \\
f(0) =…
Therkel
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