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Questions tagged [sequence]

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

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3
votes
2answers
272 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
97 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
164 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
128 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
477 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
81 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
240 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
2answers
152 views

Can anyone find the next character

Question: Options: Patterns for you to copy paste: ╟ ╢ ╠ ╣ ╤ ╧ ╥ ╨ ╦ ╩ ┘ ╜ ╛ ┐ ╖ ╕ ╙ ╘ ┌ ╓ ╒
3
votes
1answer
312 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
3answers
201 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
181 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 ...
3
votes
0answers
207 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. ...
2
votes
4answers
253 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
279 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
1answer
219 views

What is the 7th line?

...
2
votes
1answer
420 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
654 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
275 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
474 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
88 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
153 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
452 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
145 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
8k 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
132 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
2answers
636 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
140 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
201 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
224 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
789 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
174 views

A play with sequence

What should be the next two alphabets in a given sequence? GE,RU,CH,GR,?
0
votes
2answers
123 views

Figure sequence 2 [closed]

Can somebody explain why C is the correct answer?
0
votes
1answer
97 views

Complete this sequence of images

This is a sequence of images. The fourth image is blank. Replace the question marks.
-1
votes
2answers
183 views

can you solve these? [closed]

Here are some sequence patterns. I have no clue.
-1
votes
2answers
224 views

The king and his daughter! [duplicate]

Years ago, there was a small kingdom, in which there was a king. His daughter was so beautiful, that people around the world went there to marry her. But the king would allow the most clever man to be ...
-1
votes
2answers
192 views

Is there any pattern involved in the following sequence? [closed]

Consider the numerical sequence $$800,1600,4800,6400,12000,6400, \cdots.$$ Is there any pattern involved in this sequence? I am very curious to know that. This puzzle is from a FlipKart Daily Quiz. ...
-2
votes
1answer
196 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 ?
-3
votes
1answer
342 views

Why does the number 312213 follow the number211213 [duplicate]

In a number sequence of 1, 11, 21, 1112, 3112, 211213, why is the next number 312213?
-4
votes
0answers
177 views

Find the hidden initials and explain what means

TO, PD, FP, FCA, M, ? They can be anything from sports to instruments but it is difficult to consider the hidden sequence.
-5
votes
1answer
61 views

Next number in the following sequence [closed]

1, 2, 3, 5, 8, 13, 21, and so on. Find the next digit.