Questions tagged [sequence]

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

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5
votes
2answers
999 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
0answers
215 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:
5
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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
988 views

Which shape is next in the sequence?

This picture has been driving me crazy all day.
4
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1answer
4k 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
452 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
1answer
227 views

What is the maximum length of sequence where the sum of 5 consecutive numbers in positive and sum of 8 consecutive numbers is negatve

What can be maximum length of such sequence? Hint one such sequence is
4
votes
5answers
502 views

Find the missing shape in this grid

What shape should go in the empty square?
4
votes
1answer
184 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
303 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
299 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
247 views

Find the missing element?

I've been trying to solve this for quite some time, can you help me solve it? This puzzle was made by one of my friend's teachers. This is not copyrighted and cannot be found anywhere on the internet. ...
3
votes
2answers
180 views

Minimum number of flips required to turn a sequence into alternating A and Bs

You are given this sequence composed of the characters A and B: A B B B A B B A A B A A B A A B A B A A A B B A B B B A At ...
3
votes
3answers
309 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
285 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 ...
3
votes
1answer
340 views

Complete the series:

$4427, 827, 67, 31, 9, ?$ Choose between: (a): $7$ (b): $6$ (c): $5$ (d): $4$ Looking at the numbers I think that there must be some exponential relationship but couldn't find it. I took the ...
3
votes
2answers
285 views

What are the next two items?

|=|, |=|, -|, |=, |=, |-|, =|, ..., ... What are the last two symbols in this sequence? Sorry for being so unclear. There's how I'd draw those symbols: The ...
3
votes
1answer
101 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
1answer
169 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
134 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.
3
votes
1answer
525 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 ...
3
votes
1answer
88 views

Double or Halve Riddle [closed]

You start off with a \$100 pool. Every second, your pool doubles in value with probability $p$ or gets cut in half with probability $1-p.$ If you drop below 98.76543210¢ at any point, you lose and the ...
3
votes
2answers
241 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
127 views

What is the next item in this numerical sequence?

I found this on a test, and it's under "Numerical sequences". I can't figure it out. I tried using the numbers of the alphabet: 1, 2, 9, 12, 1, 2. I don't see a clear pattern. A,B,I,L,A,B,? ...
3
votes
2answers
155 views

Can anyone find the next character

Question: Options: Patterns for you to copy paste: ╟ ╢ ╠ ╣ ╤ ╧ ╥ ╨ ╦ ╩ ┘ ╜ ╛ ┐ ╖ ╕ ╙ ╘ ┌ ╓ ╒
3
votes
1answer
383 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.
3
votes
2answers
153 views

The fun in numbers

A friend of mine gave me this riddle. Find the next number of the sequence: 293, 313, 331, ... Let's see who can do better than I did. Hint: There is a new number:
3
votes
3answers
225 views

Dots in Squares

What pattern could be placed in the last square to complete the sequence? This image from https://drive.google.com/file/d/1W0A2E2GIwi6mq9b94FzA7PhfXCae-VPB/view originally created by Daniel ...
3
votes
0answers
402 views

Haselbauer-Dickheiser Test no. 1: Matrix problem with four dots and tiles shifting colors [closed]

This problem is the first problem from the Haselbauer-Dickheiser Test. I find this to be one of the harder problems on the test that I haven't solved. To me, the test is weird in the sense that it ...
2
votes
1answer
284 views

Find the next number in the series

Can you find the next number in the following series ? 2 , 0 , 3 , 5 , 25 , 119 , ?
2
votes
4answers
258 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 ...
2
votes
1answer
222 views

What is the 7th line?

...
2
votes
1answer
78 views

Sequence Puzzle - Sequence Of The Day

Look at these two sequences. The rules of these two sequences are the same. 0 32 15 3 9 5 4 2 6 7 13 110 174 155 314 2120 5360 24671 119546 193002 240820 274454 153700 1397287 17916598 26245242 ...
2
votes
1answer
435 views

An original non-recursive sequence

16, ?, 19, ?, ?, 15, 16, 9, ?, ?, 14, ?, ?, ?, ?, 1 According to my measure, this sequence is more original than that of Fibonacci. Replace the question marks with the missing numbers.
2
votes
2answers
786 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 ...
2
votes
2answers
601 views

2 hard IQ questions

Can someone please help me to find the answers and the logic behind the 2 questions below? The questions are from the test taken from the website: http://www.iq-brain.com/example/1 I could solve ...
2
votes
2answers
481 views

A puzzling data-driven sequence

First puzzle! I was inspired by this question to make my own. Props to the author for itching my brain! Update: I double-checked the sequence, turns out it changed! I overlooked something which I ...
2
votes
0answers
89 views

Flea on infinite chessboard jumping with irrational vector eventually changes square color [closed]

Question from Engel's Problem Solving Strategies: An infinite chessboard consists of $1 \times 1$ squares. A flea starts on a white square and makes jumps by $\alpha$ to the right and $\beta$ upwards, ...
2
votes
2answers
158 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 ...
1
vote
3answers
475 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 ...
1
vote
1answer
173 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.
1
vote
1answer
13k 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:
1
vote
1answer
147 views

Figure out the pattern

$0,4,8,21,52,65,96$ Given this set of numbers figure out the pattern they follow and write down the next seven numbers in the sequence. Hint:
1
vote
0answers
143 views

Find the next term in the given sequence

I created this puzzle. The sequence is as follows: $$320, 71,4632,1E3D, 84B7, 6154, 4F3A44, 38B12, 11F1, BE7E44$$ Find the next element in the above sequence. Hint 1: Hint 2: Hint 3: Hint 4:
1
vote
2answers
1k views

Several IQ test puzzles

Here are some fun puzzles I would like to know the answers and explanations for. Enjoy! Source. 1. 2. 3. 4. 5.
0
votes
3answers
143 views

Finish the sequence (hopefully not too easy)

This is a number sequence. Can you guess the right answer? GOOD LUCK :) 0,1,2,4,14,21.... Can you guess the next 4 numbers?
0
votes
2answers
206 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 ...
0
votes
2answers
266 views

Find the number that does not fit into the pattern shown below

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 Each row forms a set which implements a pattern. The two patterns ...
0
votes
2answers
2k views

A Lot of Thought [duplicate]

One of my favourite school time riddles! What is the number of the parking space containing the car?
0
votes
1answer
176 views

A play with sequence

What should be the next two alphabets in a given sequence? GE,RU,CH,GR,?