A puzzle solved through an indirect and creative approach, using reasoning that is not immediately obvious and involving ideas that may not be obtainable only using logic.
1
vote
0answers
29 views
Mr. Mouse Goes Shopping
I had a perfect preface to this story, I swear, but now it escapes me. Oh well! It mustn't matter much, must it?
'Twas the night before Black Friday and all through the house, not a creature was ...
2
votes
2answers
125 views
The Cryptic Lab ~3~
SPOILER ALERT PLEASE READ The Cryptic Lab * 1 * AND The Cryptic Lab +2+ BEFORE READING PART 3!
The series is getting less and less attention, so I might close it sooner than I think; after part 5 is ...
1
vote
2answers
106 views
The Cryptic Lab +2+
SPOILER ALERT! IF YOU HAVEN'T LOOKED AT MY QUESTION BEFORE, The Cryptic Lab *1*, YOU WON'T UNDERSTAND MUCH HERE!
I'm glad people enjoyed the first part of the puzzle. I didn't think any of you would, ...
3
votes
1answer
137 views
The Cryptic Lab *1*
Once you've finished this puzzle, you can go to The Cryptic Lab +2+
This is a remake of the old puzzle, which was too broad (and I made such a terrible puzzle, lol). This is a harder yet simpler ...
-3
votes
7answers
55 views
Cryptic Chamber *1* (discontinued) [closed]
(discontinued puzzle)
The remake for this puzzle is out.
You wake up. Eyes wide open, you sit up, with a terrible pain in your stomach. You're inside a dark room, and you see a light above a light ...
0
votes
0answers
13 views
RFID Switch solution [closed]
Seeed 113020002 Grove - 125KHz RFID Reader UART or Wiegand Outputs
The Grove 125KHz RFID Reader by Seeed gives two outputs.
I am using this unit to create a RFID switch by using a relay to on/off a ...
6
votes
2answers
177 views
Time To Fix The Machine
Yesterday, I received a call from Mr. X who asked for my assistance in fixing his time machine, which he suspected had been damaged during one of his adventures. Since an initial inspection revealed ...
-3
votes
4answers
122 views
A Strange Way to Purchase [closed]
A person asks for an item or service, and is told that if they want 2, it'll be free and it would be much faster. The person did not have any medical disorder, nor were they asking for a task to be ...
-2
votes
0answers
236 views
Hint- questions - guess [closed]
it’s the same, but different. It inspires, yet it’s tactical. It’s traditional, yet revolutionary.
18
votes
2answers
2k views
Where is Jimmy's father? [duplicate]
(It's an old soviet math problem, no tricks or anything here)
Jimmy is 21 years younger than his mother.
Six years from now, Jimmy's mother will be five times as old as Jimmy.
Where is Jimmy's ...
26
votes
6answers
6k views
Noughty Mathematics Question
Use your imagination to follow these instructions:
Take out an imaginary piece of paper.
Turn it 90° clockwise.
Make a mental note to use right-justification and nice, tight kerning and leading.
In ...
6
votes
2answers
1k views
How does this equation hold true?
The other day, I found this puzzle laying on a floor:
This holds true. Why? $$w=2u$$
There was nothing else on it. It looked like an equation of some sort, although I had no clue about the $w$ and ...
6
votes
2answers
404 views
A strange message from space?
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 ...
8
votes
1answer
770 views
Fill in the number. Not as straight as it looks
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
8
votes
13answers
3k views
A Matchstick puzzle with a little twist
Here is a matchstick puzzle with TWO (possibly more) solutions.
There are two types of matchsticks.
1 Short (eight and = sign) Total 9
2 Long ( All ones) Total 4
Please move 3 matchsticks and ...
14
votes
13answers
4k views
What is my favorite color?
Oh the sweet joys of favoritism! I have another puzzle for the community; as always good luck to you all, and I hope you enjoy it!
Go to the bottom you'll see.
Rounded but right there with me.
...
8
votes
8answers
1k views
How to solve this statement? [closed]
How to solve this equation by removing one element? (one element is one spatially finished item.)
hint :
-1
votes
1answer
156 views
Why does 12/2 = 7? [duplicate]
Here's a quickie while I work on the fourth floor of the Puzzle Dungeon. It's going to be here within the next two days, probably.
Find a way to divide 12 by 2 so you get 7. There are several rules:
...
6
votes
4answers
394 views
True for one, Not for the other [closed]
I came up with puzzle, I think it's clever.
Two women, Eve and Amy, sit at a table. After a bit of casual chit chat. Amy, writes on a piece of paper and says “I wrote five words. It is a true ...
14
votes
2answers
874 views
Alphabets and Numbers? : Another Grandpa Mystery
Now we all know how crazy Grandpa is when it comes to Math. He says to me:
"Use your imagination and tell me,
If
Seven + L = Zero
And
Zero - C = One
Then
Three + I = ?
I have no ...
11
votes
4answers
474 views
Do exactly what I tell you!
A short and simple one for the community while I work on the next big one!
Do exactly what I tell you.
Stop.
Ask me if you see the moon.
That, over there; pick it up.
...
9
votes
5answers
2k views
A word with four numbers
This is a "mythical" five letter word.
It has 4 numbers in it.
All the 4 numbers are different.
All the letters in the word are part of those numbers. (no extra letters)
Hint
Think ...
1
vote
2answers
80 views
-6
votes
4answers
180 views
What was the police officer's idea? [closed]
Two police officers suspected a man of kidnapping. Without sufficient evidence they couldn't search his car or his home. They also couldn't interrogate him. One officer had an idea which later led to ...
9
votes
1answer
210 views
Six gems, six shelves, and far too many puzzle rhymes
An entry in Fortnightly Topic Challenge #39: Deep Down in the Dungeon 1.
You enter a well-lit, round chamber. As the party enters the room, the door behind you slams shut. No amount of effort can ...
-5
votes
3answers
125 views
Jacob's Video Game fix [closed]
Jacob would not stop playing video games no matter what his father said. Angry at Jacob's disobedience, the father decided he could fix the problem permanently with a hammer and a little elbow grease. ...
2
votes
1answer
123 views
Some Really Confusing Math
I was talking to a co-worker this morning and he stated that he was able to make both of these statements true using only $1, 3, 5,$ or $ 7$. He then proceeded to tell me:
$1 = 5$
$2 = 4 + 7$
$3 = 1$
...
3
votes
5answers
1k views
A Chess Puzzle in Reverse
Here with a quick chess puzzle one of my friends gave me.
The puzzle is a bit interesting; it is White to move and not mate in 1, which is the reverse objective of the usual puzzle (hence the title)....
8
votes
1answer
186 views
A room full of buttons and numbers
You see a room with two buttons, two numbers and some text. As you enter it, the room expands, and two more buttons, two more numbers and some more text show up. Later someone else enters it, the ...
4
votes
1answer
230 views
Where is Alex P. Barker?
Overview
You are a special agent with the FBI and have been given the task of finding the number one most wanted criminal of all time. He's been hiding anywhere and everywhere to evade capture for ...
5
votes
4answers
274 views
Add Chocolate for Taste
Today I have another puzzle for the community. I will warn that some of the hints are obvious while others are not. You'll need a bit of lateral thinking to complete this one! I hope you all enjoy it; ...
6
votes
9answers
499 views
Girl is looking at an object… (lateral thinking)
I remember this very old riddle involving lateral thinking. I was surprised that I cannot find it here. (Or maybe did I use wrong keywords? If so, please mark as duplicate)
Girl is looking at an ...
29
votes
17answers
10k views
Mysterious loss of weight
Now an entry into Fortnightly Topic Challenge #41: Short and Sweet
A man enters a room and presses a button. Within seconds he loses 20 lbs. How did he lose the weight?
3
votes
8answers
582 views
Murder in a bar [closed]
Two men enter a bar. They are served identical drinks with poison. One lives; the other dies. How is that possible?
7
votes
4answers
164 views
Fill in the boxes to get the right equation v2
My take on a recent puzzle. Place numbers into boxes to create a correct equation, using each number at least once:
$$\Box-\Box+\Box\times\Box=\Box\:/\:\Box$$
This time the four decimal numbers are ...
8
votes
6answers
454 views
A Riley some Math and a Confusing Note
A Quick Note
I am having a hard time picking a topic for my next story riddle and have decided to make a new puzzle. Today I have combined a multitude of puzzles into a single larger puzzle to make ...
10
votes
7answers
747 views
Fill in the boxes to get the right equation
Here is a math puzzle I had a little bit of hard time with
No computers please
There is a solution without inverting 6 to 9
0
votes
4answers
313 views
Use 2, 0, 1, and 9 to make 34
Use 2 0 1 and 8 to make 67
See above for the rules.
Note that in this one, the year is $2019$, not 2018
Whoever does this one will be rewarded with the answers for 1-100.
Hint
7
votes
2answers
587 views
An old man told me a story at lunch
Today I took my lunch break at my normal time, and sat in my usual location to eat. Nothing special, just a salad with tomatoes, swordfish, and tuna. While I sat there eating, and reading my book; an ...
6
votes
1answer
183 views
The Boy of Fire: The Final Battle
Welcome to the final part to the Boy of Fire. If you haven't read the previous parts you should do so prior to beginning this one. I've decided to take a different approach with this one as I've ...
5
votes
1answer
340 views
Who is Pete's favourite actor?
Pete loves movies. He always watches trailers of the newest blockbuster on Youtube. Sometimes it is hard for him to decide which movie he should watch next, because work is stressful and most of the ...
2
votes
6answers
199 views
The Boy of Fire: Into the Stronghold
When we last saw our heroes, they were resting after a long week in the Sea of Fire. They battled the great King of Serpents who despite his rage against the human race, assisted our heroes with a ...
6
votes
1answer
114 views
The infiltrator
The house has two doors and two windows. There's no other way of getting in or out.
There are five people inside the house right now. All of them entered the house through different means:
Albert ...
3
votes
1answer
182 views
An alternate answer
Really rare report!
Today, Todd texted this:
♦☼ ↓☼§ ♂♫☼↨ ¶◘♣ ☺♫‼○↨♣↕ ♠☼↕ ◄§♣‼¶♥○☼♫ ‼○↑ ☼♫ ¶◘♣ ♪☺¶◘ ◘☼♪♣↨☼♣↕♂? ○ ♥☺♫'¶ ♠○•§↕♣ ○¶ ☼§¶.
Although, having solved it, I decided it's too easy and ...
8
votes
2answers
249 views
The Basalisk and the Boy of Fire
As promised in my last riddle, the story continues. For those who haven't read the riddle preceding this one, I heavily recommend you do.
The door swung open, slamming the wall; our heroes burst ...
21
votes
9answers
925 views
I Almost am a Chicken
I almost am a chicken,
Not quite a famous horse.
Confined to my domain,
I'll help you see the course.
I almost am contagious,
Not quite a Youtube part.
Use a pencil when you're ready
...
9
votes
2answers
294 views
That's a story for another time
I'm a fan of nested puzzles, and especially puzzles that tell a story. I'm finding that I am quite good at them, so I'd like to post this one for the community. I wish you all the best of luck!
...
8
votes
1answer
200 views
Tell me a story!
I've seen a lot of prefix-infix-suffix/Riley riddles lately on the site and have decided to write one myself; however, those of ...
17
votes
20answers
3k views
Trapped In A Glass Cube [closed]
You wake up and find yourself trapped in a glass square shaped covering. Luckily, you see soil below, unlike all the other directions. You start digging but find that there is glass at the bottom too. ...
11
votes
8answers
2k views
No love for 2 and 3
Form two numbers. The sum of them must be $100$.
For the first one you must use the digits $4$, $5$ and $6$ taken exactly once in this order. You cannot use other digits.
For the second one you must ...
