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Questions tagged [sequence]

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

77
votes
7answers
15k 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... ...
4
votes
5answers
216 views

Find the missing shape in this grid

What shape should go in the empty square?
6
votes
1answer
85 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 ...
4
votes
0answers
191 views

Which Number Replaces the Question Mark?

Can you find out what the numbers below have in common? Can you figure out what comes next? ...
6
votes
2answers
164 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 ...
3
votes
2answers
148 views

Can anyone find the next character

Question: Options: Patterns for you to copy paste: ╟ ╢ ╠ ╣ ╤ ╧ ╥ ╨ ╦ ╩ ┘ ╜ ╛ ┐ ╖ ╕ ╙ ╘ ┌ ╓ ╒
10
votes
6answers
404 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 ...
2
votes
2answers
265 views

Had some real trouble with this logical sequence today [duplicate]

Reasonably sure I didn't get the job, but this particular part of their test really baffled me. The numbers of angle brackets in each row and column should probably add up to ten, so the missing ...
0
votes
2answers
115 views

Figure sequence 2 [closed]

Can somebody explain why C is the correct answer?
1
vote
1answer
91 views

Figure sequence

I have no clue how to solve this figure sequence. I do not see a pattern in the outer and inner figure.
2
votes
2answers
141 views

Help with a puzzle from an old book

I found a very nice puzzle from a old book written in Spanish. I got stuck after a few hours, the only possible solution I found was that the numbers inside the circle have a kind of succession. For ...
3
votes
3answers
292 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.
4
votes
2answers
742 views

Find the missing number (triangle)

Find the missing number (triangle) Options: 9 8 7 10 Please write the logic also.
6
votes
2answers
174 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
3answers
2k views

mensa sample iq-test question

I found these in a sample iq-test for mensa. Any ideas?
5
votes
1answer
171 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, __, __ ?
3
votes
1answer
85 views

Find the correct figure

I am seriously stuck here. According to my opinion: the columns do not provide any information. So the rows need to be checked. The semi circles seem either to combine or cancel arrows. I am clueless.
3
votes
2answers
115 views

Finish this sequence of figures

So I know the position of the square. I am stuck with the colors and I do not understand the position of the two smaller rhombuses.
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, ?
3
votes
1answer
136 views

Historical Sequence

What is the next number in the sequence? 10, 5, 9, 7, 6, 5, 7, 5, 8, ? Hint 1: Hint 2:
3
votes
2answers
234 views

How to play this game?

If we play the game with 7, 5, 3 and 2: 727272... If we play the game with 2 and 9: 292929... If we play the game with 9, 3 and 5: 953953953... If we play the game with 3, 9 and 5: ...
3
votes
1answer
187 views

Last item of the sequence? [closed]

3968, 63, 8, 3. I'm lost here, thought it had something to do with square roots but my guess was 1. Usually I see questions like this and it's 4...16...25, etc.
9
votes
1answer
353 views

Finding the missing Symbols

_ # – _ _ # # – ? _ # – _ _ # # – = # _ # – _ _ # # – ? _ # – _ _ # # – = # _ # – _ _ # # – ? _ # – _ _ # # – _ # – _ _ # # – ? _ # – _ _ # # – = # Which two ...
5
votes
3answers
609 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. ...
4
votes
3answers
267 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 ...
-1
votes
2answers
148 views

can you solve these? [closed]

Here are some sequence patterns. I have no clue.
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?
9
votes
2answers
257 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:
0
votes
2answers
299 views

A Lot of Thought [duplicate]

One of my favourite school time riddles! What is the number of the parking space containing the car?
6
votes
4answers
726 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 ...
7
votes
4answers
997 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
15
votes
1answer
372 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.
-2
votes
1answer
189 views

What is the next number in the integer sequence?

What is the next number in the following sequence? 25 27 30 34 39 45 52 60 69 79 69 60 52 45 39 34 30 26 22 18 82 78 74 70 66 67 64 60 65 80 ?
4
votes
1answer
540 views

Which shape is next in the sequence?

This picture has been driving me crazy all day.
1
vote
1answer
2k views

16, 06, 68, 88, ?, 98 [duplicate]

Can you figure out the rule that goes in this sequence? 16, 06, 68, 88, ?, 98 What is the '?' in the sequence? Hint:
4
votes
1answer
288 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 ...
6
votes
1answer
528 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.
3
votes
1answer
353 views

Why is this sequence of images correct?

There are currently 33 questions on Mensa's "Online IQ Test" which I took for fun. I correctly answered 32 questions and understand why they are correct, but there is one remaining question (to which ...
2
votes
4answers
226 views

Extend the sequences of numbers and names

Find the next entry in each of this pair of related sequences: 1, 4, 6, 8, 9, ? Bobby, Joe, Johnny, Carl, Ted, ? Note: There's no way to solve this without making use of both sequences - it's ...
0
votes
2answers
190 views

Continue sequence

Son asked such a task. Continue the number sequence 5, 7, 8, 12, 11.... The son is in the second grade. They studied the operations of addition, subtraction and ...
1
vote
3answers
379 views

Find the next square in this sequence

What's the next square? It was extracted from an IQ test of Mensa. There is no trap except I don't know if it can be solved. There's some French before the question: Parmi les 5 figures ...
2
votes
1answer
212 views

What is the 7th line?

...
5
votes
3answers
181 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 ...
4
votes
1answer
2k 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
398 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 ...
9
votes
1answer
373 views

Missing element of the sequence

Could you find the missing symbol in the sequence shown below? Hope you like :-)
0
votes
1answer
164 views

A play with sequence

What should be the next two alphabets in a given sequence? GE,RU,CH,GR,?
5
votes
1answer
520 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.)
6
votes
4answers
489 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 ...
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 ?