All Questions
Tagged with mathematics enigmatic-puzzle
103
questions
4
votes
1
answer
174
views
Constant puzzle
A constant is hiding behind this puzzle, can you tell which?
4 $\rightarrow$ 2 $\rightarrow$ 1 $\rightarrow$ 1 $\rightarrow$ 1 $\rightarrow$ $\dots$
? $\rightarrow$ ? $\rightarrow$ ? $\rightarrow$ $\...
- 6,157
1
vote
0
answers
448
views
Not a sudoku, but still fun?
Context:
I was trying to solve some of the puzzles on this site, when it occurred to me to make a puzzle variant myself.
I immediately could construct one with my additional rule. Making an ...
- 9,308
8
votes
3
answers
316
views
Back at the PSE headquarters
Roaming through the PSE building I come across a solid steel door. Above the door is a sign saying “Astrodome R”. I had no idea this place delved into astronomy.
Below this sign is a painting of sorts:...
- 8,870
2
votes
2
answers
139
views
Squares related to circles [closed]
Fibonacci numbers, circles, squares; everything is connected in the digital world.
Can you make two squares from a circle? Seven decimals should be accurate enough.
Which two numbers am I seeking?
I ...
- 9,308
4
votes
1
answer
275
views
In the spirit of simultaneous equations
Solve the following word/letter/number equations:
For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
And there are three that bear ...
- 862
4
votes
0
answers
212
views
The madness of a master
It was midnight. Mr. Holmes was suffering from abdominal pain, shortness of breath, pain in the bones, skin lesions and whatnot? So in this condition, why would Mr. Holmes drive to Brazilian Churches, ...
- 1,583
9
votes
1
answer
502
views
Sequence Puzzle - First Question of 42
Professor Tera was walking on Connecticut Road, where there are some public restrooms.
Tera saw some students standing in a row. They seemed to be playing a game called Evolution.
And it looked like ...
- 2,689
18
votes
1
answer
348
views
Mathematics is Material
The instructions for this puzzle...darn it, I wrote them down around here somewhere. Well, you're smart so I'm sure you'll figure it out!
CSV:
O,H,T,N,E,Z,R,I,G,M,R,V,P,O,U,E,N,L,I,O,I,E,D,F,I,E,S
N,...
- 28.7k
30
votes
2
answers
1k
views
A fairy tale in a golden toy
Once upon a time, long long ago, in the days when good stories were far more beautiful and far harder to come by, a king was asked by his spoilt but beloved princess daughter to give her a fairy tale. ...
- 5,430
45
votes
1
answer
2k
views
Ridiculous problem from an old maths textbook
There's a puzzling little problem I found in one of my old maths textbooks (Basics of Madthematics). In the middle of a whole bunch of normal problems on calculus and algebra and whatever, suddenly ...
- 5,430
18
votes
1
answer
687
views
A remarkable musical ode
On his deathbed, the great blind composer Charles Triangle composed the following remarkable piece, but his penchant for puzzles has left critics in tears searching for a deeper meaning to a piece ...
- 5,430
2
votes
1
answer
180
views
Exceptional numbers, neither good nor bad
Behold, my new comrades, a monstrous yet straightforward puzzle, appearing on the order of that group of fellows occasionally visiting PSE but hitherto unable to join their simple friends. I assure ...
- 5,430
7
votes
2
answers
267
views
A special chemical compound with a touch of math
What do you get when mixing
Aluminium, Neon, Nitrogen, Sulfur, Titanium, Vanadium,
and two math ingredients
$\lim_{n\to\infty}(1+\dfrac{1}{n})^n $ and (degree,?,seconds)
and
don't ask ...
- 12.3k
7
votes
1
answer
419
views
Density type puzzle 5
A puzzle in the spirit of this puzzle. I've tried to make it a bit tougher this time, though there are no distractions of any kind. Enjoy!
Final answer: (4,5)
Hint 1
Hint 2
Hint 3
Hint 4
- 8,870
-9
votes
4
answers
350
views
It's his birthday!
A friend of mine told me that he was about to have his birthday. However, he didn't tell me what his birthday was.
When is his birthday?
Compulsory Hint 0
Compulsory Hint 1
- 767