Questions tagged [pattern]

A puzzle in which you spot the pattern that links a set of given data items (like numbers, letters, music tunes). Usually, you use your insights into the pattern to find one or more new elements of the set.

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33
votes
2answers
3k views

Determine the algorithm

So I was given this puzzle quite some time ago and just thought it would make a nice addition to this site: Your task is to determine the method how the result is determined from the given number. A ...
1
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7answers
2k views

Which square doesn't belong here and why?

Which square doesn't belong here and why?
6
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1answer
1k views

Oh no! Yet another number series… - Find the pattern in the two examples and provide an extension

Because these have been so successful in the past, I had to bring up my own. In fact, this puzzle was inspired by Find the next number even though I (and I guess everybody but the author) still don't ...
35
votes
3answers
2k views

Find the missing elephants

Determine color and direction of the missing elephants in the picture. Here's a textual representation of the above. ...
30
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1answer
2k views

Continue the Pattern of Circles

The following shapes are sequenced from left to right. Describe or create the next five shapes. Bonus points to those who describe how the pattern works. The pattern could continue on forever. The ...
2
votes
1answer
1k views

What is the next colour?

What would be the next colour in the sequence. The correct answer will also state the logic behind it.
5
votes
2answers
490 views

Continue this number-triplet series

(4-6-4) (6-12-8) (8-12-6) (12-30-20) What is the next number triplet - and why? I'll add hints if nobody gets the answer first. In the past I've used this riddle in a game with my RPG gaming group. ...
20
votes
4answers
4k views

Mosaic with tetris blocks

Create the pattern shown in the picture below using the set of standard tetris blocks. This is a rectangular arrangement of 6×5 squares where the first and third squares have been removed from the ...
10
votes
1answer
1k views

Ernie and the Geometric Ginger Cookies

Ernie loves cooking and it's always worth the wait as he follows his curiously precise recipe to make Ginger Crunch Cookies. So I was happy to drop around when he invited me to help test his latest ...
1
vote
1answer
464 views

The security to the party[#37] - Wish me “Happy birthday”!

A party is being held at a local mansion. The host is very rich and his success is because of one thing — his famous recipe for Spaghetti! The only guests that may attend are people who correctly ...
1
vote
2answers
346 views

I'll host my own party with.. (not sure if duplicate) [duplicate]

After not getting invited to any of the parties that have been going on lately I decided to make my own. As expected I hired my own security guards and sent out a letter to all the invited guests with ...
6
votes
2answers
609 views

Brain Reading, part 3

Inspired by this question. Two friends, Andrew and Gabriel are approached one day by their friend Harry. "So, Ellen tells me you two can read each other's mind," says Harry. "Yeah that's right," ...
2
votes
1answer
2k views

Missing number in this sequence?

I heard this puzzle in a quiz I participated in: 10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 24, ?, 100, 121, 10000 What is the missing number? (You don't need to do any big calculations, and you don't ...
9
votes
4answers
1k views

Brain Reading, part 2

Inspired by this question. Two friends (Bob and Kim) go to another friend (Bill) and claim to be able to read each other's mind. Bill doesn't believe that and wants to test their ability. "Before ...
2
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5answers
913 views

The Security to the Party [Part 24]

A never ending party is being held at a local mansion. The host is very rich and his success is because of one thing — his famous recipe for Spaghetti! The only guests that may attend are people who ...
36
votes
6answers
24k views

A funny game you can play with a friend of yours: brain reading

...but first you have to find the solution! Two friends (Andrew and Gabriel) go to another friend (Ellen) and claim to be able to read each other's mind. Ellen doesn't believe that and wants to test ...
4
votes
2answers
562 views

What's the sequence?

Joe likes 2025 but not 2024; he likes 529 but not 530; he likes 400 but not 500. Which does Joe like - 3600 or 3700? Why?
19
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2answers
1k views

What do the colors say?

This color box contains a sentence. Figure out what it is: Hint:
3
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2answers
1k views

The Security to the Party [Part 4]

A party is being held at a local mansion. The host is very rich and his success is because of one thing — his famous recipe for Spaghetti! The only guests that may attend are people who correctly ...
9
votes
1answer
2k views

The Security to the Party [Part 3] [closed]

A party is being held at a local mansion. The host is very rich and his success is because of one thing — his famous recipe for Spaghetti! The only guests that may attend are people who correctly ...
55
votes
1answer
7k views

What is the next shape?

which one is the correct answer of the following picture? What is the algorithm of shapes sequence?
6
votes
2answers
544 views

Determine what the last number in this series is

4, 23, 20, 12, 14, 9, 20, 19, ? Also explain your reasoning.
-3
votes
1answer
269 views

Letter Series Problem (D,P,N,G…) [duplicate]

Find the next item in this series: D, P, N, G, C, M, M
4
votes
1answer
598 views

A Strange Sequence [duplicate]

This puzzle is taken from a French bestseller I read years ago. The solution is much simpler than it looks... Find the following line in this sequence : ...
10
votes
1answer
4k views

What is the next word in this sequence?

What word follows AMPLE in this sequence: REDDEN SEAM PLEA REARED DENSE AMPLE ?
5
votes
1answer
877 views

Beautiful HH-pattern. Find it

Knowing the solution I consider this pattern as a quite beautiful. Find the pattern: HH,EL,IB,EB,CN,OF,NE,NA,MG,AL,SI,PS,CL,AR,KC,AS,CT, ...
-3
votes
1answer
478 views

Finish The Pattern

Please note I realize there could be many "correct answers" but I'm looking for a specific one. 1, 3, 5, 4, 2, 7, 6, 8, 9, 3, 4, 5, 8, 2, 9, 3, 5, 2, 42, 35, 42, 52, 55, 52, 109, 85, 120, ?, ?, ? ...
3
votes
2answers
612 views

When will the matrix turn to black?

For the following pattern of filling the $5*5$ matrix, how many steps does it take to turn all cells of the matrix to black? Pattern has revealed by eBusiness: I guess after some steps next pointed ...
-6
votes
3answers
956 views

When Math Loses Meaning

In an alternative universe where the following is true: 1 # 1 = 3 2 # 2 = 7 1 # 2 = 5 What would ? be? 5 # 5 = ? YOU DO NOT NEED THE FOLLOWING TO FINISH. Extra equations:
-1
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2answers
3k views

Petals around the rose

You roll 5 dice and I'll always be able to give a number uniquely-defined by the numbers on the dice. You have to figure out how it works, without looking it up. Here's a couple example rolls: 1,2,3,...
-7
votes
1answer
859 views

Find the next 3 items in the sequence [duplicate]

A sequence goes as follows: A AA BA ABAA AAABBA CABBAA ACAABBBA AAACBACBAA CAACABAAACABBA ... It's an altered version of a sequence you all know! The answer ...
6
votes
3answers
988 views

What is the next 3 numbers?

These numbers are created with a formula. Guess the formula for increment and calculate at least 3 next numbers of this sequence. increment is started with two given first $1$s. $1,$ $1,$ $2,$ ...
2
votes
2answers
1k views

A sequence named by a children's toy [duplicate]

Here's a part of the sequence: (A) (B) (C) (D) (E) 1113122113 311311222113 ... The letters are the missing members (there are 5 missing members) and A is the ...
1
vote
2answers
1k views

What are the next 5 numbers in the sequence?

It's a simple pattern I thought of. Here it is: 1,1,1,3,3,6,6,10,10,22,22,44,44,84,?,?,?,?,? Whoever gives the correct answer and a good explanation gets best answer.
6
votes
1answer
2k views

Find the next symbol in this sequence

I just came up with the following puzzle. I don't think anything like this has been asked here before, but I may be wrong. What's the next symbol in this sequence?
18
votes
2answers
20k views

Difficult IQ test question: What is the box suggesting?

I found a Very Difficult IQ Test on web. One of its questions is: What is the box suggesting? I have seen the answer but there was no clues for the logic behind that. 123456789 176h54308 627456934 ...
55
votes
4answers
9k views

Interview Question or Pathbreaking puzzle

I thought this changes the way series of numbers are looked at 1 1 1 2 1 1 2 1 1 Write down the next three lines
5
votes
1answer
791 views

Find the pattern of matrices

fill the matrix correctly and the guess the Letter and number of 5th matrix: PS: I'm sure you won't need options!
2
votes
1answer
2k views

Find the next number in the series?

Find the value of 'a' and 'b' in the following series. 100,101,120,103,410,321,205,404,60a,5b2
7
votes
5answers
2k views

How many squares can you find in the picture?

How many sqares can you draw in given pattern, when each corner of a sqare has to lie in the exact center of one of the 20 colored circles?
6
votes
3answers
1k views

Guess the last pattern in the image

Find the last pattern in the picture and state your reasons. source: zoomit.ir
2
votes
1answer
373 views

Guess the Function for Scatterplot of Number Theoretic Function

To my knowledge, this puzzle is not previously published (except by me on google+ recently), but I would be interested to hear of any info otherwise. This following graph was generated using a simple ...
4
votes
1answer
515 views

What do the Glyphs from the Tale of Genji represent?

The Tale of Genji is a classic japanese novel, probably written more than a thousand years ago. The 19th century artist Toyohara Kunichika painted a picture for every of the 54 chapters. Every ...
8
votes
2answers
611 views

Pattern 1 — Numbers

Fill in the missing number: 10, 30, 60, 01,__, 12 Use a bit of lateral thinking. And math. Also, I do know the answer. Just giving the question as a teaser.
8
votes
2answers
4k views

Spatial IQ test puzzles

The following puzzles were created by Robert Lato to measure IQ in range between 160 and 190. Whats the solution to them? You are supposed to draw in the dented boxes what the missing figure is for ...
3
votes
3answers
13k views

Task 39 from iqtest.dk

What is the solution for this puzzle from this IQ test?
7
votes
4answers
7k views

What is the pattern in this IQ test puzzle with spotted triangles and arrowed circles?

The solution for this test is 1. But what is the pattern? P.S. I checked that 1 is the answer by simply trying different options in the test itself (Russian site for the test is here: http://sly2m....
5
votes
2answers
2k views

I have a pattern problem to solve!

The question reads: From the given pattern, What comes in place of '?'
57
votes
3answers
258k views

What is the number of the parking spot?

One needs to find the number under the car.
8
votes
10answers
7k views

Find the missing number: A Pentagonal pattern puzzle

This question is based upon the figure shown below. $$ \begin{array}{|ccc|c|ccc|c|ccc|} \; & 41 & \; & \; & \; & 31 & \; & \; & \; & ? & \; \\ 5 & \; ...