Questions tagged [sequence]

A puzzle about sequences of symbols, elements, or other objects.

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83
votes
7answers
16k views

Thanks, dad! Never again

No idea why my dad dragged me into this place. Some guy is performing on the stage. He's reading numbers out loud. I think it's some kind of a sequence puzzle. 1... 8... 9... 16... 17... ...
32
votes
1answer
2k views

The mystery flag

Part two - The mystery flag - twisted Based on these flags: (Count the sun in the Argentina flag as yellow) Which country does this flag belong to? Please explain why EDIT: I added a black ...
27
votes
12answers
2k views

Shapes and letters. What is the missing box?

Finally, someone has figured it out. Good job.
21
votes
5answers
2k views

There are fifteen triangles, what is the sixteenth?

This is "fifteen triangles": ▲ ▼ ▲ ▲ ▼ ▼ ▲ ▲ ▲ ▼ ▼ ▲ ▲ ▲ ▼ ? Each triangle points up or down. What the "?" figure should be and why?
18
votes
3answers
604 views

Basically Binary but Boldly Baffling

Another image sequence puzzle inspired by @Conifers, enjoy ;D Colorblind-friendly version Clarification: one or more tag(s) has been deliberately omitted to enhance the difficulty. Hints 1 ...
15
votes
1answer
402 views

Spot the pattern. There is none

Look at these pictures: What's the next picture? As requested, bellow is a set of possible answers. You don't have to look at them to find the correct answer.
14
votes
2answers
356 views

It comes full circle

Top, Middle, Bottom, Double-Right; Double-Right; Up Left, Middle, Double-Right; Double-Right; Top, Middle, Bottom, Up Left, Down Right; Top, Middle, Bottom, Up Left, Double-Right; ??? What would ...
13
votes
1answer
2k views

What is the next number in the series?

What is the next number of this series? 1 , 4 , 5 , 6 , 7 , 9 , 11 ?
12
votes
1answer
380 views

A fortified nonogram

This puzzle is part 21 of Gladys' journey across the globe. Each part can be solved independently. Nevertheless, if you are new to the series, feel free to start at the beginning: Introducing Gladys. ...
11
votes
1answer
2k views

I bet you can't find the next number in this sequence

Find the next number in this sequence. 9, 72, 16, 83, 33, 33, 36, 37, 32, 65, ?
11
votes
2answers
244 views

Finger sequence – find the continuation

Pick the correct continuation for the sequence. Options: Hint:
10
votes
6answers
433 views

I shouldn't have asked him.. again

My roommate (rm) always looks busy in front of his laptop, so I try to start talking to him Me: Hi, the last time we talked you told me your favorite book, and I like your taste! it's a very good ...
10
votes
1answer
1k views

The end of the life!

$1\ 16 \ 41 \ 55 \ 79 \ 90 \ 103 \ 120 \ 123 \ ?$ What is the last number in this different sequence! If you find it, it will be the end of the life!
10
votes
1answer
673 views

Find the element that does not fit the pattern

These 12 elements form a set with a certain pattern, but there is one element that does not fit. Which one is that? HINT HINT 2
9
votes
1answer
752 views

A sequence about you (Puzzling Stack Exchange users)

I have a mysterious sequence for you... $204, 186, 172, 133, 126, 123, 120, 119, 111, 107, 102, 96, 90, 87, 86, 86, 85, 79, 75, 73, 70, 68, 66, 66, 65, 65, 65, 64, 64, 64, ...$ This sequence may ...
9
votes
2answers
238 views

A Pixelated Sequence - Find the Continuation

A late question inspired by Finger sequence – find the continuation How should the grid above the '10' be coloured?
9
votes
1answer
516 views

Finding the missing Symbols

_ # – _ _ # # – ? _ # – _ _ # # – = # _ # – _ _ # # – ? _ # – _ _ # # – = # _ # – _ _ # # – ? _ # – _ _ # # – _ # – _ _ # # – ? _ # – _ _ # # – = # Which two ...
9
votes
2answers
270 views

How is BABBAB formed

$[A ...] \to A [...]$ $[B ...] \to B [S [...]]$ $[S A ...] \to B ...$ $[S B ...] \to A [S ...]$ $[S] \to B$ $[ ] \to$ (E.g. $[AAB] \to AABB$) But, $[????] \to BABBAB$ Bonus puzzle:
9
votes
1answer
396 views

Missing element of the sequence

Could you find the missing symbol in the sequence shown below? Hope you like :-)
8
votes
1answer
324 views

Who started it? And who did not?

The question is: Who started it? And who did not?
7
votes
4answers
1k views

Nine, Seven, Gibberish, then what?

Here's a sequence: What is the next item? Here are possible answers (but you don't need to look at them to figure it out): Update
7
votes
1answer
177 views

What will be next at the bottom row and why?

There is a stack made of 6 squares. As you can see there are yellow squares between red ones. The question is what will be the next row like? And why?
7
votes
1answer
310 views

Fill The grid - 3.0

Can you fill this grid ? Version ($\pi$) In text: ?14516 243748 120581 17186? 01?857 HINT 1 HINT 2 HINT 3
6
votes
5answers
2k views

20 cards facing down

You have a row of $20$ cards facing down. A 'move' consists of the following actions performed in sequence: Pick a face-down card and flip it face-up If there is one, also flip the next card on ...
6
votes
2answers
177 views

Trees and dates

A friend of mine in Sydney, Australia, asked for help in explaining these stones. I don't know if this is really a puzzle, but he's definitely puzzled. In one of our local parks someone has put ...
6
votes
1answer
1k views

Tough pattern questions

I can't fathom any kind of pattern in these questions. The test is over but i'm curious to know how it should be solved.
6
votes
3answers
2k views

mensa sample iq-test question

I found these in a sample iq-test for mensa. Any ideas?
6
votes
1answer
199 views

What's the next letter?

Can you determine which letter comes next? In text U R R R A U ? HINT 1
6
votes
1answer
108 views

A Sequence Riddle [duplicate]

Here is a list of numerical sequences: 1, 3, 5, 4 2, 3, 5, 4 3, 5, 4 4 5, 4 6, 3, 5, 4 ...and so on. (1 is 3 and 2 is 3, but 1 is not 2 and 2 is not 1. The same rule applies to every number in the ...
6
votes
2answers
183 views

Computer sequence

You have created a computer, but it is not working, only printing sets of 4 characters in a sequence. If you can predict the next 3 sets, then you can restart the computer and set it up so you can ...
6
votes
1answer
171 views

Find the next number in the following sequence [Mind bender]

I came across this sequence in the paper: 109080, 12123, 1350, 153, ? What could be the next number? And what is the pattern that connects these numbers? Dividing a term by the next term leads to a ...
6
votes
4answers
513 views

Find the next number in the sequence [closed]

One tough puzzle to solve : Find the next number in the sequence : 5,105,74,712,37,? Options are : a. 2008 b. 57 c. 507 d. 98 e. 44 What is the next number, and why? Puzzle ...
6
votes
3answers
373 views

A Legitimate Sequence

Choices: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Sequence: D G A B I L F ? ? As long as you can count you can solve this puzzle. So what could the next letters be?
6
votes
1answer
609 views

Which Numbers Replace the Question Marks?

Can you find out what the numbers below have in common? Can you figure out what comes next? ...
5
votes
3answers
707 views

Can you find the value of the question mark$\color{red}?$

Puzzle: Find the value of the question mark $\color{red}?$. $$(2, 13, 47)$$ $$(5, 7, 19)$$ $$(8, 1, \color{red}?)$$ Hint 1: $\color{red}?$ is a prime. Hint 2: $\color{red}?$ is a cyclops. ...
5
votes
1answer
531 views

A Beautiful Looking Puzzle

In the picture given below, can you find out which picture will take place of the question mark and add your reasoning as well? 1.) 2.) 3.) 4.) 5.) 6.) 7.) 8.)
5
votes
3answers
186 views

Can a cube have a positive and negative on each face with no crossover?

This cube has a positive (blue) and a negative (black) bar on each face. That is 2 flat bars per face. On each face 1 bar has the opposite polarity to the other. I have hidden the faces to make the ...
5
votes
1answer
147 views

Fill the grid - 2.0

Can you fill this grid ? (Version 2.0 ) Text version 714523 191303 165088 213443 573211 91?12?
5
votes
0answers
2k views

Mensa IQ test question: complete the logical sequence [closed]

I tried taking the Mensa practice test. One of the question involved completing a series of figures with the most logical option. This is the base sequence: And we have to choose the additional ...
4
votes
1answer
762 views

Which shape is next in the sequence?

This picture has been driving me crazy all day.
4
votes
1answer
3k views

Is it possible to scramble a Rubik's cube so that each face has no more than 2 squares of the same color?

So the complete conditions for this scrambled cube can be described alternatively as the following: Each face has less than 3 squares of the same color, which leads to 1a. Each face has 5 or 6 ...
4
votes
2answers
438 views

Stimulating Treasure Hunt?

The puzzle is broken into four parts, and each part yields a single letter. Put them all together, and it'll spell out the thing that gets me up in the morning :-) PART 1 1) One who may think ...
4
votes
5answers
340 views

Find the missing shape in this grid

What shape should go in the empty square?
4
votes
2answers
3k views

Find the missing number (triangle)

Find the missing number (triangle) Options: 9 8 7 10 Please write the logic also.
4
votes
1answer
182 views

Another pattern puzzle with a twist…well, not quite so

What are the next two terms of the following crazy sequence: I, h, 6, 9l, 52, 9E, 6h, __, __ ?
4
votes
1answer
293 views

Can you find the next number in the following series?

Replace the question mark with the next number. 14, 1, 13, 0, 23, 21, ?
4
votes
1answer
296 views

Thick and light walled dots sequence

Hi I saw this sequence and cant's stop thinking about it. I was guessing that the number of thick-walled dots represents the number of sides for the next shape in the sequence the 3rd shape has 3 ...
4
votes
0answers
167 views

A simple twist on a classic puzzle

Given this sequence: 0, 4, 84, 212, 1940, 358036, 14113428, 127377044 What is the next item? Hint:
3
votes
3answers
300 views

What is the next?

1 3 5 2 4 ? some numbers are given, it seems so obvious? FYI: the answer is not 6. what is the next? the answer is not a number.
3
votes
3answers
279 views

Puzzling Number Boxes

Found this puzzle as a translation question. The Chinese is fairly simple, it just asks to solve for the ? in the bottom right square. The actual puzzle though, I have no clue about. Can any of you ...