You have just arrived at work and walked to your cubicle, and after checking your emails, you are about to get started with
your project, when you notice a strange new application on your desktop. The text under the application icon is simply
"virus.exe", and this was what the icon looked like:...
An entry for Fortnightly Topic Challenge #40, have fun with non-Chess puzzle! ;)
Three young children: Red, Green, and Blue; were playing a classic game of Snakes and Ladders, when suddenly their mom called them to have a dinner.
When they came back to their room, they forgot whose turn it wa...
In a certain code, AFZALPUR is written as BCBGYVOS.
What is the code for FARIDKOT?
As per my attempts so far, I cannot find a definite sequence of encoding. Both A and Z appear to be encoded to B, which is a bit puzzling. Some intuition in this regard would help.
We have 12 coins, and only 11 of them have the same mass. It can be assumed that all coins have identical appearances.
We have a lever.
How can we identify the special coin, by taking measurements from the lever for only three times?
Example:
If we have 6 identical coins and one of them is...
An entry for the Fortnightly Topic Challenge #40.
Alice and Bob are two rational players who are playing a simple pencil-and-paper game.
In the beginning, there are fifteen small vertical bars on the paper in the form of a pyramid. Players take turns crossing over one or more bars, and th...
The square below is missing a number.
You have four options
32
4
16
22
Please explain your answer
HINT
Something to do with addition
Two people are playing an interesting form of a number guessing game, with the following rules:
One person is the guesser, and one person is the thinker.
The thinker thinks of a number from 1 to 2925 inclusive, and can't change it mid-game.
The guesser has 25 guesses to guess the numb...
I have the following text in a file. Decoding it will reveal a passkey, but I cannot figure out what is being done.
I have the following text in a file. Decoding it will reveal a passkey, but I cannot figure out what is being done.
Pompeia and Pompeii are two different things. Pompeia was the...Given equal-sided 30-60-90 triangles, what is the polygon with the highest number of sides that I can build from them?
This seems a very easy task by first look, but I’m totally stuck right now. The only thing I’m pretty sure of is that the polygon can at most have 12 sides, because a 150 degree...
I was listening to AM radio (frequency 1480) the other day and an odd message came through in what seemed like an infinite loop.
Drop 5.
Echo 0.
Negate 0.
Split 4.
Enter 1.
A few hours later, my friend stopped by in disbelief of this message; I turned it back to the radi...
This four-by-four Magic Square uses all the integers from -7 to 8. Complete the square.
This is what has been given so far:
-7 _ _ _
_ -2 _ +1
_ _ +3 _
+5 _ _ _
Please Help. Thank you
Triangulating for the simplest puzzle that is still at least somewhat interesting to solve..
On the left side wall in this picture, we have two particular clocks:
1: an analog clock with identical hour and minute arms, and
2: a digital clock that shows initial zeroes when appropriate
Durin...
