Questions tagged [lateral-thinking]

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.

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2
votes
6answers
657 views

Bizarre number sequence

My friend sent me this tricky puzzle... Please explain the reason for the mistake in the number sequence - what is it trying to communicate? 8139, 8140, 8141, 5493, 8143, 8144 Hints: 1.
15
votes
6answers
2k views

Does this equation make sense?

"The two sides of this equation appear to be different, don't they?" asked Grandpa I looked at the numbers he had written on a piece of paper and nodded in agreement. 2011 = 1012 "Can ...
18
votes
9answers
3k views

A fun lateral-thinking Chess puzzle [closed]

Which famous movie is suggested by the following chess position (by Trevor Tao)?
-5
votes
1answer
93 views

Fun with Letters, Words and Sentences? [closed]

I have a game, but first, I need to explain how it works. Take a sentence, completely meaningful. Suppose the sentence is, "Yes, yesterday we ate the meal sometime at night". In this ...
0
votes
1answer
316 views

That's fine, most of my family doesn't want to acknowledge being related to me either [closed]

Today I share a 100% true story from my past. I use to meet my little brother to eat together with him regularly, but any time his friends or others that knew him would meet me the conversation always ...
7
votes
7answers
855 views

Ma turned 34 in 2002. Really?

My friend said to me: “In February of the year 1970 at 1:12 AM Ma turned 18. Ma turned 34 in February of the year 2002 at 2:16 AM. How is this possible?” “And yes. Same Ma!” he ended with that. Hint ...
8
votes
3answers
372 views

With a little effort, one can prevail

What is common between the following words and names? (Inspired by this except that I actually know the answer to this one) Defeat Kleenex? Guanaco Nerdiest Sardar Ian McKellen Dingo Gun Diablo ...
10
votes
13answers
5k 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 ...
3
votes
1answer
250 views

A talk with Four Brothers

Once upon a time, on going to the small park nearby to take some fresh air, I met four quite peculiar brothers and had a talk with them. Each had a different story to tell. The first two brothers ...
6
votes
1answer
437 views

Stop the robot by changing value of variable Z

You're a computer security expert (i.e a hacker who doesn't break law). Your neighbour is infamous professor MacGoofy himself. He specializes in designing programming languages and programming ...
9
votes
1answer
350 views

An X-Mensa dq question

Which of the numbers should fill in the ?. 4, 3, 4, 7, 0, 45, 7, 15, 64, 0, 1111, 55, 5, 5, 0, 20, 32, 1, ? a) 2 b) 0 c) 20 d) 1 Hints: 1.
56
votes
3answers
254k views

What is the number of the parking spot?

One needs to find the number under the car.
11
votes
0answers
439 views

Found the key, but what to unlock?

Here's a series of text messages between me and my friend. Me: Couldn't use ebg13, so used ______ to hide my messages. Him: What? How is this possible??? Me: A big prime ______, what else did you ...
4
votes
2answers
220 views

People have many things to say about me

You could say I'm straight, or you could say I'm gay. You could say I'm a virgin, or you could say I've had sex. You could say I've always been the youngest of my family, or you could say I had a ...
1
vote
1answer
151 views

Ohh, NSA Again? #2

This puzzle is the second part of story Ohh, NSA again?. Hope like this story. Here it is: John got the target, it was Stack. Problem is, it can be Stack Overflow or Stack Exchange. Another problem ...
1
vote
3answers
306 views

He's a real mama's baby

Monday morning baby Alex awoke in his mother's loving embrace. His mother changed him, fed him, and snuggled him, which he of course loved. But when she went to get her coat and suitcase baby Alex ...
-5
votes
1answer
121 views

One more heart that never beats

It is from the Internet, I changed it a bit, I will put the link after it is answered. I have a heart that never beats, I have a home but I never sleep. I can take a mans house and build anothers, ...
0
votes
2answers
157 views

The Strange Conversation

One morning, I was riding along my bicycle around town and I stopped outside the shopping center as there were 2 old-persons, one man and one woman (let's call them A and B) standing outside and ...
-2
votes
1answer
74 views

Can you find what I am?

Here's a simple affix-riddle . My prefix is the sound of an animal. My infix, the missing of the cast. My suffix, what children like to hear. My whole, deals with the past. Can you guess the ...
11
votes
1answer
466 views

A No - Sensa IQ Question?

“This is a Non-sensa IQ Test Question,” said Grandpa giggling. “It is not math but there may be some science behind it. If X is 527 and I is 810 Then, IX is? A: 2810 B: 75310 C: 110 D: A or B
3
votes
7answers
679 views

Why are the tires flat on one side?

I have a long commute, so I spend a lot of time staring at the cars ahead of me. One unusual thing I've observed is that on most cars the left-hand side tires look like they have less air than the ...
3
votes
1answer
128 views

A function. Really?

If you give me a 5, I give you a 21. If you give me a 6, I give you a 2. If you give me a 7, I give you a 12. If you give me a 10, I give you a 101. What am I processing to get the result? Hint 1 ...
51
votes
8answers
53k views

29 - 1 = 30 how?

How is 29 - 1 = 30? If also 14 - 1 = 15 11 - 1 = 10 9 - 1 =10. Hint:
0
votes
1answer
541 views

Oh no, not again

I wanted to say something, but I forget what it was. Can you help me? 10 - [A-z] (-2) 255 - #beginningfirst00 15 - Period. 0 - You forgot one. You forgot one. Since every beginning has an end, let's ...
32
votes
3answers
8k views

Who drinks beer while running anyway?

A variant (I don't have the book in front of me, so this is a paraphrase) of this puzzle was in the book Brainteasers and Mindbenders, by Robert Hamilton. It has stuck in my mind since I read it in ...
7
votes
1answer
263 views

A rather odd number sequence!

Can you find the next number in this baffling sequence? 925, 955, 1040, 1140, 1255, 225, 410, ?
33
votes
2answers
1k views

Scoring a grid​

As a professor of Awesomeness at the prestigious Ad Hoc University (other questions in this series), I decided to assign my students this puzzle. Unfortunately, they were all unable to get it! I want ...
6
votes
10answers
474 views

Matchsticks 9 + 9 = 8 [closed]

You are given the wrong equation (made out of matchsticks) 9 + 9 = 8 and you can move at most 3 matches. Your aim is to find all possible correct equations. Selected answer will be one that discovers ...
7
votes
1answer
1k views

2 + 2 = Fish. Who am I?

This is a simple problem that my friend asked me: 2 + 2 = Fish 3 + 3 = Eight 7 + 7 = ? Can you figure out what is represented by the question mark?
-6
votes
2answers
96 views

A perfect split of rope [closed]

What is the correct way to split a rope into two parts? A) Cut it using a blade or any sharp object. B) Pull on end of the rope until it breaks. *Note, only one of the ways mentioned above 'can' break ...
2
votes
1answer
161 views

It's been a while hasn't it?

Why can't I say hello? Anyways, it's Emma! I know it's been a while, but I've been busy with work, and life, and I haven't had much free time lately. With that in mind though, I've got a new puzzle! ...
-4
votes
1answer
161 views

Who is a zombie amongst the 3 and why?

Here is a picture of $3$ people eating food. Can you spot who is a zombie amongst them? and why? Taken From :- 7-Second Riddles
1
vote
1answer
93 views

The unknown wheat-and-chessboard problem

You can read the original story of the Wheat and Chessboard problem on Wikipedia. (But you won't get anything useful from it :)) An eternity after the original ...
6
votes
1answer
372 views

Murder on the Fairway

A body has been found at the Green Estates Fairway. Next to the body was a bloody golf club which was later confirmed by the medical examiner to be the murder weapon. Thankfully, only ten men ...
10
votes
1answer
291 views

Old Bob is ill : Said Grandpa

“Darn good computer, this new one I just got. So you can have my old one”, said Grandpa to my sister. I was impressed, but a bit cynical. “What’s the catch?” Grandpa smiled. “Just guess the 4 letter ...
9
votes
1answer
319 views

It's your turn now!

What is the simple rule behind these three relations below? $F$ $\rightarrow$ $C$ :: $R$ $\rightarrow$ $I$ $\rightarrow$ $\sqrt{F}$ :: $IA$ $\rightarrow$ $D$
-4
votes
9answers
3k views

What is the snake trying to tell us?

My friend's pet snake told this below message to us... What is the message it is trying to tell us? What is the pattern? PL,MKOIJNBHUYGVCFTRDXZSEWAQ
1
vote
2answers
121 views

What should the captive say? [duplicate]

You are lost in a jungle and suddenly get caught by a tribal group who are cannibals. They keep you captive and however think of offering you a second chance to save your life. Their leader says- &...
5
votes
1answer
225 views

Sudoku Logic From Another Planet

This is the brutally hard Tatooine Sunset Sudoku puzzle by Philip Newman ... except the Noble Happy Star has goofed! Two of the digits have been swapped and there are multiple solutions. Fortunately, ...
5
votes
5answers
801 views

Matchsticks: Fix the Equation

Here's a simple puzzle I just created: Move just one matchstick to fix the next equation:
8
votes
2answers
346 views

Fit the board into the hole

How can you divide the board into exactly $2$ equally-shaped and sized pieces such that it fits the hole? Bonus: Can you do the same problem in $3$ pieces, such that one of the pieces of the board ...
4
votes
2answers
625 views

Was someone there in the room, or it was just an illusion? [closed]

We were a very happy family of $3$ members, me and my mother and father. Sometimes my parents would go outside to visit my grandmother and I used to live alone freely, doing my work and reading ...
5
votes
11answers
2k views

Matchstick Problem: Turn 1 into 12 by removing a matchstick [closed]

Below are some matchsticks arranged to display an expression. Your task is to remove one matchstick so that the resulting value of the expression will be twelve.
-1
votes
1answer
220 views

A Creepy Birthday Party

A little girl was invited to her friend's birthday party. After blowing out the candles and eating the cake, the children went out to play in the garden. The little girl's mother stayed in the kitchen ...
0
votes
1answer
88 views

My infix and suffix are given, but my prefix is not

My prefix is not known, Rather it has some meaning or some mark, But my suffix has magic powers, And my infix depends on smart remark. My whole is about choice, has a meaning or two. Can you guess ...
11
votes
2answers
743 views

Checkmate all the kings #2

Following the rules created by Lord of dark in this puzzle, the idea is to find the minimum number of consecutive white moves to checkmate all the black kings (in this case just 1). You cannot make a ...
23
votes
1answer
1k views

What kind of car do I have?

What kind of car do I have? The clue words: stories, robbery, rock, minimum, old, ducks
5
votes
0answers
480 views

Zed's E-mail: My Good Ol' Uncle Sugar

My friend Gabby and I constantly look out for each other. Just the other day, she received a strange message from what I thought was an uncle of hers. "Problem is," she started with a ...
1
vote
1answer
115 views

Is it too early to think about Christmas?

I received an odd present today in a shiny red wrap. I was a little surprised as it was no where near Christmas yet but excited at the same time. I tried to tear the present open but was unable to do ...
9
votes
1answer
565 views

What is a “ B & A” puzzle?

I think this type of puzzle format is a bit different from some you already have seen. I call them B & A puzzles. After you solve them you will likely know what that means. There are six seperate ...

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