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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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 ...
2
votes
6answers
652 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.
-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 ...
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)?
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 ...
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 ...
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 ...
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.
1
vote
1answer
150 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 ...
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 ...
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 ...
-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, ...
-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
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 ...
0
votes
1answer
540 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 ...
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, ?
-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
160 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 ...
9
votes
1answer
319 views

It's your turn now!

What is the simple rule behind these three relations below? $F$ $\rightarrow$ $C$ :: $R$ $\rightarrow$ $I$ $\rightarrow$ $\sqrt{F}$ :: $IA$ $\rightarrow$ $D$
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
224 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 ...
-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 ...
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.
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 ...
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 ...
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
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 ...
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
564 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 ...
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 ...
2
votes
1answer
171 views

The fix is in : Any guesses?

My prefix is in the infix My infix is in the suffix My suffix is in the prefix 3 and 3 totally six What's the word?
0
votes
1answer
258 views

NO. DIFFICULTY. PUZZLE

Up here is down on the ________ side. The article used in this sentence. What is this again? The verb used above The second answer is here too. Open my lock with a ___. Where is the key?
3
votes
1answer
168 views

Curved brick wall

Below is a fully functioning curved brick wall. Amazingly it uses fewer bricks than a functioning straight brick wall of comparable length. How is this possible?
-2
votes
3answers
123 views

How to become a millionaire by selling coconuts? [closed]

A woman is buying many coconuts for 5\$ a dozen. Afterwards, she is selling the coconuts for 3\$ a dozen. After this transaction, the woman has become a millionaire! How could that happen? Hint: ...
3
votes
1answer
307 views

Sorry, I'm new. to this SE

spoil the unlukcy number for this text fbeel, V'z arj fb gvuf jvyy or fchre rm. 3 > 4 and 4 > 3 ^\w|[A-Z]|[^w](?=i) is the whole clue minus a letter. Find it ...
-4
votes
3answers
180 views

Coin in a jar trick

A jar with a single key inside has its lid closed shut. How can you get the key out? The jar is glued to the table, and the lid is stuck as well. Your solution should be quick (a minute max).
1
vote
1answer
111 views

Some pocket challenges

A "pocket challenge" is a short puzzle where you don't need any complicated process nor writing material and, some times, not even a great knowledge. That's what I like to call them... Here ...
8
votes
1answer
267 views

A Simple Subtraction, Three Answers

Think laterally and you will get three answers to a simple question. The question is: What do you get if you minus Ten from Forty Nine? The answers are 39 41 59 How? Please explain. No partial ...
2
votes
3answers
296 views

Spiritual chemistry take two

When the three meet there’s a Ghost. When one departs and another gains weight God remains. What elementary abbreviations do I speak of? I am looking for an exact answer - no spare letters. A hint ...
1
vote
1answer
150 views

Spiritual chemistry spell

What three abbreviations can be used to spell Ghost and God? This is meant to be elementary but there is a twist.
9
votes
7answers
2k views

Matchstick rearrangement: Zero to Hero

Below is an expression that has a value of 0. How can you move only three matchsticks for the resulting value to be 49?
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 ...
2
votes
3answers
226 views

Silent Chinese Whispers

There is an advanced course for experienced lip-readers who want to become intructors. If they qualify, they will teach lip-reading classes themselves. All the participants in this course-for-...

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