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12 views

Numbers in the series: The British way

What are the next two numbers in series? Six hundred and forty Five thousand Eight thousand ? ? What is the next number? Is this a trick question? Note: I am using the UK ...
11
votes
1answer
65 views

The hardest crossword you'll do today!

This could well be the most difficult crossword you do today! Please note that the use of Google and other search engines is STRICTLY FORBIDDEN. (Of course, I have no way of policing this, but if ...
0
votes
0answers
64 views

Stop, and stop now

Oh hang thee, I do, from the rafters above; Though I'll often do my utmost to support thee from below. Sometimes I'm wont to leave thee waiting in ears; But as a rule, I'm a beast, telling thee ...
3
votes
3answers
114 views

Is there any easy way to solve this lock puzzle?

https://js13kgames.com/games/lock-puzzle/index.html The link provides an online puzzle game of $16$ tiles in the form of a $4 \times 4$ matrix of which some entries are in the form of vertical tiles ...
1
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0answers
50 views

Keep Your Head Up

Always remember this. What is the image above trying to say?
2
votes
2answers
90 views

Colouring the map of Canada

A previous question asked whether the map of the USA needs four colors. Now, what about Canada? If you want to assign a colour to each province and territory, so that no two neighbours have the same ...
5
votes
1answer
81 views

Literally Riley

My prefix sounds of lines My infix's on signs My suffix's hat's askew I'm Spanish, it's true What word am I?!
5
votes
2answers
302 views

A quick rebus for the children

As a parent, it might happen to tell this at the partner: (3, 3, 7, 4)
0
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0answers
93 views

Reverse Engineering Computer Formula

A computer uses an unknown formula to create a 4 digit Output using specific Input. Here are 3 examples: Input = 20066 : 020470 : 47 : 1 : 322267 Output = 0927 Input = 20066 : 020470 : 46 : 3 : ...
0
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0answers
77 views

What is the next number in the following squares? [closed]

What is the next number in the following squares?
2
votes
2answers
115 views

The scientific one!

The picture below will lead you to the correct answer. The answer consists of two parts(_____ _____). Try see if you can make sense of it! Oh, and don't forget.... the scientific one! Hint
3
votes
1answer
136 views

Another puzzle for who has long boring days

The rules: each row must have the digits from 0 to 9. The sum of the digits in the column is shown at the bottom of the column. The same number can appear more than once in a column. Adjacent boxes ...
1
vote
0answers
50 views

Ranking boxers in order of their strength in minimum number of days [closed]

1024 boxers are to be ranked in order of strength: The following are given: No two boxers have the same strength In any match, the stronger boxer always wins A boxer may fight in only 1 match per day ...
0
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0answers
70 views

How to solve this maths puzzle? [closed]

How can I solve this maths puzzle?
0
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0answers
63 views

unsolvable Number pattern [closed]

This is the sequence: 24, 333333, x, x, 53, 44444444, 82, x, x, 222244444444, x, x,x, 444433333322221 In this sequence we could consider those couples: 24,333333 x,x 53,44444444 82,x x,...
-2
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0answers
71 views

Please ! Answer this puzzle [closed]

How should the numbers be filled in in this arithmetic grid?
4
votes
0answers
114 views

Can you fill in the missing number?

Try to figure out what number might be missing inside circle (sorry for bad drawing :P ) . All the best :)
0
votes
1answer
133 views

Complete the series:

4427, 827, 67, 31, 9, ? Looking at the numbers I tkink that there must be some exponential relationship but couldn't find it. I took the sequence of differences between the numbers which is 3600, 760,...
6
votes
2answers
523 views

Guess characters from pictures

I've been sent this by my friend on Facebook. Unfortunately I don't know the original source. Every picture represents a set of TV characters. Can you guess who they are?
7
votes
2answers
392 views

Knights and Queen puzzle

This is not original. I just want to share this problem. If you have heard of it, please give opportunities for those who haven't to answer. Horst and Queenie are playing a game on a $200\times200$ ...
8
votes
1answer
218 views

New puzzle for who has long boring days

This is a Sujiken puzzle ...
25
votes
3answers
1k views

A strange dictator

I am a strange dictator. I meet with three of my fellow leaders at a square table. In discussions I'll always agree with whoever's across from me and almost never agree with whoever's next to me. ...
8
votes
3answers
285 views

Rock, Paper, Scissors, Anti-Rock

Alice and Bob are both well-known perfect logicians who have the ability to internally randomize and often pass their time by playing rock-paper-scissors. One day, tired of the usual RPS game, Alice ...
2
votes
1answer
287 views

Something I loved the most

Below are some puzzles you need to solve to make a 4 letter word. 1. 105 35 315 ? 2. I am the most important element in your surrounding. I was found by a Scottish physician. Who am I? 3. I am ...
12
votes
1answer
646 views

A trip around the United Kingdom?

Last year, I visited the following towns and cities in the UK, in order, following a specific route Huddersfield Portsmouth Grantham Sutton Edinburgh Giffnock London Eastbourne Where ...
10
votes
6answers
538 views

A looped building with Prime rooms lighted

Imagine a building with 200 consecutive connected rooms as shown below. The shape is not important. It could be a circular loop building. You do not know the room numbers but you are told that they ...
2
votes
0answers
150 views

Some luck involved

Can you guess the theme? Note: Rather easy if you have the knowledge, despite my efforts to toughen it up, so please no image search!
3
votes
3answers
1k views

Brain twisting maths sequence question

The answer is But what is the explanation?
4
votes
1answer
168 views

They all relate to one thing

1: $60$ $60$ $60$ 2: $\frac{n(n+1)(2n+1)}{6}$ 3: $\sqrt{s(s-a)(s-b)(s-c)}$ 4: $\frac{21}{7}$ 5: 25, 36, ? 6: $>90$ Find what all of these mean or what they represent (What I ...
5
votes
1answer
452 views

Find how many colors are needed to color all vertices

In this puzzle you need to identify the minimum number of colors needed to color vertices such that no two adjacent vertices ...
1
vote
1answer
145 views

Found this on The Ohio State University campus on a pillar relatively hidden from view. Any leads? I’m clueless

Here is the photo of the code... I think. I don’t know what it could be, but it was duct taped to a pillar for several weeks before I was kicked off campus from COVID-19:
4
votes
2answers
147 views
0
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0answers
107 views

Need help for a sto-stone puzzle [closed]

I need help for this puzzle. The name is Sto-Stone, a friend sent me for geocaching.
4
votes
5answers
666 views

Place the numbers 1-7 in the squares so that each row and columns adds up to the same total

A F B D E C G A+B+C = B+D+E = F+E+G Numbers 1,2,3,4,5,6,7
2
votes
1answer
304 views

A short puzzle especially for social isolation time

Solve the following analogy. ":" means "is to" and "::" means "as". Text only:
10
votes
1answer
253 views

humans, vampires and mirrors

Here is a room composed of $10 \times 10$ squared cells. Some cells contain a double-faced mirror ( / or \ ) that reflects the light with an angle of $90°$ on both sides. The other cells can be empty (...
3
votes
6answers
509 views

Analogy with Number

The given analogy is 343 : 989 :: x : 669 What is x? 223 332 333 233
17
votes
1answer
541 views

Elementary, my dear Louis

Felt it was time for another Density™ puzzle. Warning: May require thinking. Enjoy! Final answer: (3,4,4,4)
3
votes
1answer
182 views

Find missing number

In below grid there are 2 numbers missing fill it with appropriate number . Text version: 69 10 13 192 ? 45 279 64 ? Hint :
16
votes
2answers
3k views

Pretty lame reviews.. Why do people want this?

Browsing an online store, you see this product. The reviews are pretty low, but it seems many people want it. What is it ?
10
votes
1answer
222 views

Where is Bob tweeting from?

Your friend Bob burnt out at his job, and went abroad for a long vacation1. He tweeted this today. Where is he ? 1 Note that Bob is not subject to lockdown since he is a hat. Hint
27
votes
5answers
2k views

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 ...
9
votes
3answers
372 views

Number Guessing (Part 1)

I thought up two positive integers with product less than $500$. I told their product to Penny, and their sum to Sandy, and told both of them the constraints and they are both perfect logicians. ...
7
votes
1answer
184 views

That letter sequence started so nicely

Find out how the following letter-sequence is constructed: ...
12
votes
2answers
287 views

The entrapment of Beastly Gerbil

Part 1: The disappearance of Beastly Gerbil I've been trapped here for what feels like forever. This is all I've known. Darkness. The occasional flash of light, but then back to darkness, always, ...
7
votes
3answers
385 views

What is the minimum count of steps required to complete this maze correctly?

Here's a map: How to play Legend: B = Boost X = Objective (•) = ...
7
votes
2answers
336 views

Akari: Another Light

Rules (taken from Nikoli): Place light bulbs (circles) according to the following rules. Light bulbs may be placed in any of the white squares, the number in the square shows how many light ...
3
votes
1answer
129 views

My whole ceases to be anything

My prefix isn’t affirmative My infix is somewhat a ring My postfix isn’t a prime My whole ceases to be anything
8
votes
0answers
219 views

Mosaic by Albrecht Dürer

This is a visual puzzle (known as "mosaic" or "fill-a-pix") with the same rules as MineSweeper: The grid is to be filled with colored and white tessera. Choose whatever color you like for the colored ...
4
votes
2answers
307 views

Three riddles in one

Look at the conversation below Mary: Oh no! My ___________! John: _________ happened? Mary: I don't know! John: You're REACTing too much, EH? Clue 1: The answer is three words, but if ...

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