Unanswered Questions
76 questions with no upvoted or accepted answers
22
votes
0
answers
3k
views
What does this mathematical operator do?
The solution to this puzzle is one I came up with when working on this puzzle: What is the answer of this math puzzle?
For two natural numbers a,b, can you figure ...
- 660
22
votes
0
answers
2k
views
REALLY important days in history
@Z. Dailey asks a mathematical puzzle Important days in history... and to come! with a series of dates in years 1973, 1978, 1983, 1992, 2005.
My puzzle asks the question: What is the previous date in ...
- 197
19
votes
0
answers
974
views
Alternate, complex potions puzzle from HP fanfic
A long narrow room. The entrance is blocked by purple flame, the path onward blocked by black flame. On a table, the only thing in the room, are two dozen potions in opaque bottles. Half green glass, ...
- 191
14
votes
0
answers
843
views
Grandma's keynote
Found this note which is addressed
To my grandma, in her chest
Since she's passed now, here's my quest..
What tickled her interest?
And who invited her as guest?
- 123
11
votes
0
answers
406
views
What is a Freecell 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 Freecell Word™.
Use the ...
- 11k
9
votes
0
answers
672
views
A nice riley, hopefully is fun
Within these lines is a puzzle I've made.
With cunning and wit, can you guess my trade?
Inside the tome of the element's power,
One minute per side, you'll read for an hour.
A single number of the ...
- 19k
9
votes
0
answers
476
views
The highest poem
I am three, often a person, always a digit, and also witout.
George POUST was his name.
Manufactured by Ford between 1972 and 1976.
YMCA was not my first team in my coaching career.
Theory of ...
- 11k
9
votes
0
answers
370
views
My drunken formula?
I know that today is an important day, but I can't remember why... All I have in my possession is this formula I wrote last night in my drunken stupor:
You go here:
$$B = 25 + \biggl(\frac{O}{...
- 10.6k
8
votes
0
answers
229
views
There are 49 cards here. Figure out what the seven facedown cards are and what position they're in
So here's the problem
"There are 49 cards here. Can you figure out what the seven facedown cards are and what position they're in?"
I have tried about everything in my math tool belt to try ...
- 10.3k
8
votes
0
answers
201
views
Is it possible to create a knot that is locked only when the rope is stretched?
Is it possible to create a knot that is stable/locked when the rope is stretched?
When the tension is relived the knot should open.
- 8,333
7
votes
0
answers
310
views
Where are you according to this riddle?
Go forward, and you'll arrive back. Go back, and you'll arrive back. Go west and you'll come from the east. Go east and you'll come from the west. Jump once and you black out, jump twice and you're ...
- 322
7
votes
0
answers
346
views
Stress Not! - A North Daniels' Puzzle
Beep, beep, beep, beep...
No, this was not the sound of D.S.I North Daniels playing miniature cricket on his phone, although that would be a preferable situation to the one he is in now.
Unfortunately,...
- 705
7
votes
0
answers
397
views
Open the French safe
While walking in a small alley in Paris, you come across a safe.
The number pad looks like this :
There are things on the back of the safe too :
"À l'aide du carré 3x3 ci-dessous et des nombres ...
- 1,006
7
votes
0
answers
14k
views
Crypto Riddle for a bonus track
here is a crypto riddle a artist named Master Boot Record put on the page of his music.
087 104 101 110 032 116 104 101 032 077 111 111 110 032 119 105 108
108 032 115 104 101 100 032 110 111 032 108 ...
- 60.6k
6
votes
0
answers
536
views
What is a Sharp Number™?
This puzzle is based off and inspired by the What is a Word™ and What is a Phrase™ series started by JLee and their spin-off What is a Number™ series.
This was originally going to be a challenge for ...
- 210