# Questions tagged [number-sequence]

A puzzle that asks for the pattern in a given number sequence.

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### Number sequence 15, 18, 30, 39

Given the number sequence 15, 18, 30, 39, 54, 69, 78, 90, 93 can you predict the next two values (or more...?) Note that This number sequence does not appear in the online encyclopaedia of ...
1k views

### Explain the number sequence and predict the next 6 numbers

Given the number sequence 0,1,4,9,0,1,9,1,4,2,1,3,0,4,1,5,4,6,9,7,0,9,9,a,4,?,?,?,?,?,? the challenge is to Determine the value represented by a Predict the next 6 entries represented by ? Note ...
264 views

### What is the next number in the sequence

What could be the next number in the sequence: 57, 74, 65, 61, 37, 58, ?
135 views

### Missing number!

The 4 quadruples are complete, however the 5:th one is not. Replace the question mark. (All 5 quadruples follow the same rule)
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### One Step Forward, Two Steps Back

What is the next number in this never-ending sequence? 0 1 1 110 111 101 11000 11101 10101 1100110 1001011 ...
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### Find the formula and the missing number in the series

Given the series below, can you find its formula and hence the missing number? 3, -1, 7, 8, 20, 35, 43, 76, ??, 131, 159
427 views

### Ten Sequences With a Theme

Each of the ten sequences below have a similarly worded rule that determines the next number in the sequence. Try to figure the rules and subsequent numbers for each of the sequences. They are not ...
125 views

### Counting with towers

An ancient civilization has been discovered which uses an unusual counting system, based on stacks of blocks. However, most of the information on this civilization has been lost to time, and little ...
616 views

### Find the next number in the sequence: [12, 13], 25, 58, 52, 98, 108, 780, 568, 306

Given this sequence: [12, 13], 25, 58, 52, 98, 108, 780, 568, 306 What is the next number? Note the square brackets. Hint: Hint #2: Hint #3: Hint #4 Hint #5
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### Find the next number and what I am!

This is the first puzzle I made and apparently it's too difficult. So I tried to create hints, but it's hard. If you have any ideas on how to write this riddle in a better way, or have more "...
81 views

### Formulating sequences in particular ways

Let's have the following sequences: 772,6772,59404,521092,? 298,2614,22930,201142,? What comes next, where the question marks are?
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### My favourite two number sequences are below do you know/ can you guess them and what are yours? [duplicate]

3.3.5.4.4.3.5.5.4.3.6.6... and 8, 5, 4, 9, 1, 7, 6, 3, 2, 0
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### A geometric sequence using one digit

Give the first few terms of a geometric sequence such that: the sequence is increasing and infinite only one digit is used throughout the sequence the terms are written as base ten ...
134 views

### Number puzzle! Find “?”

Replace the question marks. 1, 1, 2, 3, 6, 7, ?, 11, 14, 19, 20, ?
223 views

### What’s the next number in the sequence?

I have a numeric sequence: 1,4,5,5,7,9,9,6,6,11,13,11,? What is the next number in the sequence and what pattern does the sequence follow? This sequence has to do with prime numbers and the sequence ...
1k views

### What comes next in this sequence, and why?

I'm having the hardest time with this sequence puzzle. The mobile game I play (which asked me the question) doesn't provide answers or explanations for incorrect answers, and I'm searching online so I ...
133 views

### Replace “?” in a squence of numbers

Replace the "?" in the following sequence: 2 7 10 13 14 22 26 27 28 31 49 53 54 57 78 79 ? 90 101 106 109 110 111
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### Placing three sets of cards Ace to 9 in a row

From an ordinary deck of playing cards remove cards ace to nine of any three suits (27 cards in all), and place them in a row so that between any 2 consecutive aces there is precisely 1 card, between ...
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### Aces, twos, threes, and fours in a row

Take the 4 aces, 4 twos, 4 threes, and 4 fours from an ordinary deck of playing cards. Is it possible to place all 16 cards in a row on a table so that there is precisely 1 card between any 2 ...
280 views

### Number sequence. What's next?

Replace the question mark. Ill give hint if noone can solve it within a couple of hours. 5, 12, 24, 36, 52, 68, 84, 100, ?
82 views

### What number should be replaced by? How and Why

What number should replace the ? (1,3),(6,8),(6,9),(7,3),(2,4),(6,4),(?,6),(7,2)
139 views

### Number sequence. Replace the “?'s”

Replace the question marks. 6, 35, 143, ?, ?, 1147
121 views

### Replace the question marks

Here's some number problems. 8:2::1:1::64:? A:4::D:49::?:169 439: SQUARE::125:CUBE::216:? A:8::M:5::J:1::O:10::M:?
889 views

### Triangle puzzle

Can you guess the pattern? Fill in the blank for the last triangle
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### What does “?” stand for?

As stated in the title, what does the "?" stand for? If you want me to clarify something or if you want additional information, let me know. But this should be sufficient. -30 04 50 = 16 -10 16 40 =...
454 views

### What is next number in the sequence?

11, 12, 26, 615, 153X, ? Just to clarify, the "X" stands for a single digit and the "?" stands for the next number in the sequence.
160 views

### A number sequence: 3, 26, 83,

Genius level! 3, 26, 83, 1196, 2915, ?
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### Can you find the missing number?

Here's 3 number puzzles/series. I'll give hints tomorrow if noone is able to solve them 11, 31, 71, 91, 32, ? 1, 1, 2, 6, 36, 44, ? IF, 132 = 72 208= 200 390=288 ...
122 views

### Can someone tell me what is next in that 3 sequences?

I'm looking at three sequences from the test at http://free.ultimaiq.net/nse.htm. I managed to answer 27 of the 30 questions, but I'm really curious about the other three. Q6: 1001, 4524, 4299, 3984, ...
221 views

### Find the missing number in the given puzzle

Original image here Source: My coaching DPP (Daily Practice Paper) A) $112$ B) $92$ C) $82$ D) $102$ I found $5^2+3^2-4^2=18,\,7^2+5^2-3^2=65.$ So, $?=8^2+6^2-5^2=75$ which is not in option. ...
138 views

### How do I solve this number sequence puzzle?

I am trying to answer this number sequence puzzle - which of the five potential answers is correct, and why? http://www.admissions.yildiz.edu.tr/images/files/ytuyos2018.pdf
371 views

### What are the next three numbers in this sequence?

What are the next three numbers in this sequence, and why? 110, 150, 230, 350, 550, 910, 1510, 2510... Hint 1: here's another sequence that follows identical rules. Hint 2: here's a third ...
141 views

### Find the next number in the weird sequence

The following sequence has been made using a specific pattern and the last number is kept secret. We have to find that number along with the pattern followed to make the sequence. 3, 11, 32, 71, ...
441 views

### What is the rule?

I have a secret rule. Can you find out what it is, with this rule, I take in any number, and output two numbers! The answer to this puzzle is the same as the answer to the question: How do I get the ...
186 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:
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### What is the next number in the sequence and why?

7 4 11 2 14 5 18 3 21 ? Find the next number in the sequence?
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### Find the missing number (number sequence puzzle) [duplicate]

Find the missing number 56784 = 4 11111 = 0 72348 = 3 88652 = 5 88811 = 6 75213 = 0 65465 = 3 62257 = ? I found this quiz in an archive of our company's ...
194 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. ...
1k views

### Find d this ones stumped me help?

This one is annoying me so much. Got this from a maths teacher.
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### 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:
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### What is the next number in the series: 21, 21, 23, 20, 5, 25, 31, 24,?

I came across a puzzle from a workbook for primary school students who wish to sit in exams for enrolling to selective high schools, which asks about what is the next number in the series. What ...
266 views

### Next number in the sequence?

What is the next number in this sequence? 0, 6, 12, 19, 27, 35, 45, 54, 63, ? Good luck! HINT:
250 views

### The music of the heavens

A monastery has a curious practice: they call it the music of the heavens. The monks cycle through a cave with cups, to a stalactite at the center, which drips water. But this is not a steady ...
95 views

### Missing number in the table [closed]

This is my 3x3 grid: $$\begin{matrix} 2 & 6 & 8 \\ 3 & 7 & 3 \\ 6 & 4 & x \end{matrix}$$ Here x should be replaced with some number. Based on the solutions it should be x=1. ...
99 views

### What number should be in the place of “?”

I'm trying to solve this puzzle. Numbers are at triangle, and I have to solve ?-mark: 5 6 1 7 2 5 ? 7 5 Based on solutions it ...
435 views

### A sequence to continue, if you know how

What's the next number in this finite sequence? 3, 3, 3, 3, 5, 2, 3, 3, 3, 2, 4, 2, 2, 3, 2, 3, 5, 3, 4, 4, 4, 3, 3, 1, 3, 5, 4, 5, 2, 3, 5, 2, 3, 3, 1, 4, 3, 1, 4, 2, 3, ? Hint added later: Hint ...
What is the missing number in the question mark? (My own puzzle) $(4, 3, 2),(4, 4, 4),(7, 9, 3),(8, 8, 4),(4, 12, 2),( 5, ?, 10)$ A) $1$ B) $3$ C) $5$ D) $10$ E) $66$ F) $14$