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1500 questions
32
votes
4 answers
Why is hell equal to 114.3 metres?
Well, the title says it all really.
$$\text{hell} = 114.3\; \text{metres}$$
Why is this the case?
JDL
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32
votes
5 answers
Weigh a scale with itself
Using nothing but a pocket scale and a flat surface such as a countertop, find the total mass of the scale, including the attached metal plate and the plastic tray/cover (left).
Details about the scale:
If you press the TARE button, the scale's…
Snowball
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32
votes
5 answers
How many spots do these frogs have?
You are approached by 5 spotted frogs who appear to be venomous, to avoid getting bitten by them, you must find out how many spots they have. The frogs with an even number of spots always tell the truth and the frogs with an odd number of spots…
DenverCoder1
- 10,472
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- 89
32
votes
2 answers
Fun with Flags part 2: a musical connection
We are looking for a song (artist and title).
Other (independently solvable) puzzles of this type: 1, 3, 4, 5, 6, 7, 8, 9, 10.
sarsaparilla
- 6,090
- 18
- 55
32
votes
1 answer
Ernie and the Island of Stability
Unfortunately, it appears that I may have misled you a little in this puzzle (as you probably know - my memory of events isn't always perfect). When I was writing it, I re-checked the Kzijekistanian postal rules on Gurgle-translate, but somehow…
Penguino
- 13,882
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- 93
32
votes
5 answers
A mathematician's coffee alphametic
Alfréd Rényi, a Hungarian mathematician, said that a mathematician is a machine for turning coffee into theorems. It's believed that his mention was about his colleague, Paul Erdős, the celebrated mathematician.
How much coffee had he drunken for…
P.-S. Park
- 4,199
- 16
- 44
32
votes
8 answers
Pulling the rope with one hand is as heavy as with two hands?
There is this box, having two holes, and the ropes going through each of them.
I try to pull the left rope with my left hand... And it's heavy...
Then I try to pull the right rope with my right hand... It's also heavy, as heavy as before.
Ok so...…
athin
- 34,177
- 4
- 70
- 221
32
votes
2 answers
There is only s̶i̶x̶t̶y one place he can be
This puzzle is not mine, although I don't have any reference as to where it originated from. I discovered it when I was a student, some fifteen years ago. It has been among my favourite chess puzzles since then. Could be very well known or a…
Arnaud Mortier
- 7,431
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- 55
32
votes
2 answers
Can anyone tell me why this program fails?
org.apache.kafka.clients.consumer.ConsumerRecords@1f6d27cc was empty
ScalaTestFailureLocation: SorterTest at (SorterTest.scala:75107)
org.scalatest.exceptions.TestFailedException: org.apache.kafka.clients.consumer.ConsumerRecords@1f6d27cc…
Turvo
- 423
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- 7
32
votes
2 answers
How do you like my writing?
Robots have iron noses.
Operative extremists display dystopian intent.
Extra apex predators emphasize dominant attitude.
Lambada teacher oversees Nightwish aficionado.
Reorganize big ordinary room boxes.
I tried the extreme ride level.
…
Jafe
- 78,615
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- 614
32
votes
1 answer
What do I really want to do today?
There are so many things I have to do today. One of them is grocery shopping. Hey! Here's my list!
Meat Department
Salmon $4.54
Bacon $2.73
Steak $5.88
Ham $7.10
Beef(ground) $3.56
Bakery
Baguette $2.00
Muffins $3.18
Dairy
Yogurt…
Goose
- 20,142
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- 115
32
votes
4 answers
What ARE they talking about?
The other day I was in a group chat on that brilliant messaging app WhatsGoinOn? when some banter between a few of my friends totally baffled me.
We had been getting nostalgic - talking about all the great stuff we grew up with, you know. Then my…
Astralbee
- 8,414
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32
votes
3 answers
Mysterious Flash Drive
First puzzle I ever do! Hopefully it won't be too easy or too challenging.
My co-worker just gave me a USB flash drive, which was supposed to contain a couple files of code for me to review. Unfortunately, I think he might have given me the wrong…
NudgeNudge
- 6,095
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32
votes
1 answer
Grandpa's crazy math. Another Grandpa Mystery
Grandpa says : " Bit of a stretch but--
2.72 = 1000 x 10000
Is he crazy or genius?
DrD
- 39,225
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32
votes
1 answer
What is a Croupier's Word™?
This puzzle is based off the What is a Word™ and What is a Phrase™ series started by JLee and their spin-off What is a Number™ series.
If a word conforms to a certain rule, I call it a Croupier's Word™. Use the following examples to find the…
Bass
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