Unanswered Questions
69 questions with no upvoted or accepted answers
22
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0
answers
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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
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
353
views
12:41 puzzle: colorful geometry
The answer is a 4-letter word. I will not be giving any hints.
This puzzle is very old. The puzzle is solved using only the image (no clues to the puzzle in title or description).
CommunityBot
- 1
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
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
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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
300
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7
votes
0
answers
899
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They are all K-verbs
Find the missing verb.
G: Fold, Break, Pry
D: Reduce, Vibrate, Rob
B: Soak, Subtract, Thrash
J: Sleep, Squeeze, ?
Subtle Hint:
Moderate Hint:
Decisive Hint:
Very Decisive Hint:
- 5,257
7
votes
0
answers
368
views
Do you see the point?
Original puzzle by me.
Remember to always obey your superiors. The first one should be 08594.
Hint:
- 821
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
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
6
votes
0
answers
511
views
Rare but Abundant in Hill and Hole
I am uncommon,
But a worthy goal.
Rare but abundant
In hill and hole.
Who am I?
You may already know the answer, so the task is not to answer the riddle per se, but to solve the following 'What is a ...
- 27.7k
6
votes
0
answers
186
views
How many items are there in the lab?
I am looking for how to complete the following question so that it gives a unique solution. Maybe somebody can give a visual solution.
A lab contains experimental equipment. 24 items are ready to use ...
- 117k