Questions tagged [number-sequence]

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

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1
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2answers
208 views

Sequence made of symbols

(My friend in real life gave me this)That's the original sequence: ⬅↕➡,⬅↕,➡,⬅,?,?,↕➡ I'm going to use other symbols to make it readable: (/), (/,), (/, ?, ?, /) I've noticed that the comma ...
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2answers
130 views

alphanumerical sequence Correct one

I have tried to solve this sequence which, I suppose has been created from the combination of a,b,c,d,e. I've reposted the correct sequence The sequence: (a,c), ?, ?, ?, (a,e), ?, ?, (c,d), ?, (b,...
5
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2answers
171 views

Two, completely independent, means exist to obtain the same answer

... one "local"; and one "global" 1) 1 + 1 = 2 2) 2 + 1 = 4 3) 3 + 2 = 9 4) 5 + 3 = 17 5) 7 + ?? = 32 Can you determine the correct answer ...
11
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6answers
626 views

Temple Password

You and your friends Brutus and April are exploring an ancient temple when you encounter a locked door with a stone keypad next to it numbering 0, 1, 2 and 3. Out of curiosity you decide to type in ...
1
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6answers
1k views

My school has a “crack the code” riddle [closed]

Title says most of it. I've been at this for hours with almost no progress. There are two codes (37068 and 57063) that didn't work although they seem to fit the conditions given. Can someone please ...
3
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1answer
119 views

some sequences are awesome!

My name is Awesom$\Sigma$ Sequenc$\Sigma$. Nice to meet you all :). I am new here. You can either use my first name or last name to address me. My hobbies include visiting new places. I usually ...
1
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1answer
203 views

Extremely Long Difficult Number Sequence

(2 7 4 4 5 7), (?), (2 1 3 2 1 7 1 4 1 5), (2 2 4 1 1 3 1 7 1 4 1 5), I can't find any links between these numbers, anyone could help me solve it?
2
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2answers
250 views

Continue the number sequence

Some minor misunderstanding last week inspired me on creating this puzzle. Hope it would be not very boring :) Sequence: 10 50 100 306 356 562 ... What`s next? Hint:
6
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2answers
288 views

number sequence puzzle deep six

Just a quick puzzle I just thought up. (so apologies if this has already been done) Here's numbers 1 to 5 in a sequence: 5-4-1-3-2 I now want to add the number 6 into the sequence, but where ...
15
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3answers
651 views

Mathematical cryptic clues

Programming language, after removing loss for you, reverses time (6) Complex arithmetic begins, Turing tests start beforehand (7) Quadruply male doctor Einstein, familiarly (11) Lie on a ...
13
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1answer
511 views

Find the next number in this sequence

Find the next number in the sequence : 1; 5; 33; 25; 2; 16; 14; 12; 11; ? What is the next number and why ?
14
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1answer
516 views

250 Floor Tower

There's a tower in a far off land, one that you can only climb by unlocking the secret password to all the floors. Each floor has an inscription on the walls, indicating a number. As you approach a ...
12
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0answers
384 views

Rethinking this series on the syllabus

I assigned each person in my class the task of creating a number-sequence, however, 4 of the guys I usually consider to be leaders came back with baffling results. Can you make sense of their work ...
3
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2answers
484 views

Find the next value of this number series [closed]

I have tried to solve few number series problems but this one is little difficult for me to solve. kindly help me to solve this. -1,35,143,323,? Thanks in ...
6
votes
2answers
499 views

IBM PAT Number Sequence

I am looking at an old IBM PAT (circa 1965) and am stumped by a number sequence question. This is it: Identify the pattern in the following sequences and select the option which indicates the next ...
-2
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1answer
200 views

How to solve this puzzling?

20190309,245111132328,331508165892,51222189610023,? A friend of mine gave me this number puzzling but I have no idea what is the logic. Does anyone know how to solve?
4
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1answer
282 views

Numbers Brain Teaser

I've come across a strange brain teaser on one of those sheets with things like: (man overboard) So here's the puzzle: 0 - 20 10 - 3 14 - 29 96 - 72 1977 I've been trying to ...
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3answers
197 views

speciality of the binary sequence $\underline{100101100110100}101101001$

One friend has given me this binary sequence and asked what is its speciality if we add next few terms to this sequence? The binary sequence was: $$\color{blue}{\underline{100101100110100}}101101001 \...
3
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1answer
147 views

Number sequence puzzle stuck on

Stuck on this number sequence puzzle for a while now, today was talking about IQ tests with somebody so thought I'd ask here. 1, 2, 33, ?, 555, 23, ?, 222 The source is INRC 2018 Q3 (btw if anyone ...
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1answer
190 views

UNKNOWN CIPHER - NEED HELP DETERMINING (SOLVING)

I am trying to figure out how to decrypt and also re-encrypt potentially the following, meaning that i could write a random text string and it would generate that encryption and also decrypting it ...
6
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2answers
315 views

A real-world puzzler - find the pattern!

This is a bit of an unusual puzzle - one that is purely "real world" :) My console can produce a load of colours. But I can't find any obvious way to relate the colour to its number. I'd hoped that ...
4
votes
5answers
429 views

Haters will say 28 June

Find the next number in this sequence: $4,3,7,5,10,15,?$ Think outside the frustum here. Hint 1: Hint 2:
8
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5answers
652 views

The Legend of Four

As far as I know, all numbers have a root of 4. What I mean by this is as follows: Starting with any number, for example 384, I take the number of letters in that number. Then I repeat this process ...
2
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2answers
363 views

Another Number Sequence Riddle

Here is another number sequence riddle for you all: 4, 2, 7, 6, 8, __, __, and so on. What numbers go in the blanks?
3
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1answer
130 views

Mind the…(number seqeunce)

Find the next number in the sequence: 2, 3, 7, 23, 89, 113, ? Hint:
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1answer
343 views

Logic Puzzle: Solve and Provide Explanation [closed]

Please solve the logic puzzle above and provide an explanation for your reasoning.
2
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1answer
272 views

Find the missing numbers 1, 3, 6, ?, ?, ?, 45, 55

1, 3, 6, ?, ?, ?, 45, 55 I asked the person who gave this to me and they assured me that it's correct. After an hour, I've given up :(
5
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1answer
229 views

Find the next number in the sequence?

1 = 1 2 = 12 3 = 27 4 = 44 5 = 35 6 = ? The only hint I got was:
4
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2answers
242 views

A small set numerical puzzle

Three, Twenty-one, and forty-five start this list that has arrived. ---edit for a little more clarity--- Ninety-one and one hundred and twenty. Then we get to the doubly interesting number....
4
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1answer
430 views

What is the next sequence of numbers?

Seven and seven is forty-two, Eight and nine are fifty; Ten and eleven are sixty-two, And twelve and twelve are five. What is the next sequence of numbers?
0
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1answer
47 views

Special rhombii

There are two parts to this puzzle, but I am posting the other part tagged with ‘mathematics’ because it isn’t really a number sequence problem. Part I Find the next number in the sequence: 1,2,3,7,16,...
3
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2answers
164 views

Cyrus' Adventure (Part 1)

Cyrus is on an adventure to the deep unknown forest, in order to get the mysterious treasure box. After walking for a few days, he found out that a strange door was blocking his way, and there weren't ...
2
votes
1answer
69 views

Ashley and MK, number sequence

What’s the next number in the sequence? $4, 6, 12, 18, 30, ?$ This one is pretty easy, so I will post the answer in a few days if no one gets it.
4
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1answer
184 views

Don’t be arbitrary

What’s the next number in the sequence? 2, 3, 2, 3, 2, 5, 2, 3, 2, 3, 10, ? P.S I’m new, so tell me if the question was too hard or too easy.
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1answer
60 views

Next number in the following sequence [closed]

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

Find the next number in the series

Can you find the next number in the following series ? 2 , 0 , 3 , 5 , 25 , 119 , ?
0
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1answer
84 views

Number Sequence (hope it is not too hard)

Complete this number sequence 1, __ , 2 , 6, 120, 40320, 6227020800 , __ , 2.952328e+38, __ , __ , __ Can you do it?
0
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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?
3
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1answer
193 views

What is the next term of this sequence?

What is the next number? $$2,3,10,12,13,20,?$$
8
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1answer
1k views

Staying grounded

I found a somewhat meaningful sequence that is not on OEIS yet, incredible! Here are the first 100 numbers of this sequence: ...
7
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1answer
254 views

Unlucky thirteen

These two separate sequences use the same rule and stop at the 13th term. 2, 1, 8, 5, 2, 5, 8, 6, 7, 9, 7, 7, 0 3, 1, 5, 3, 9, 2, 4, 3, 9, 7, 3, 1, 0 These examples are produced when the ...
2
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1answer
2k views

Please find the missing number in the question [closed]

Find the missing number, and show how you found it.
-4
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1answer
90 views

solve it if you can [closed]

n = 11, j = 1, s = 9, m = ? If you solve it you are a genius.
28
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1answer
2k views

That gap is a bit jarring

... but there doesn't seem to be anything missing. $0,1,2,3,4,5,6,7,1527465$ What then could cause that rather large gap?
11
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2answers
625 views

A sequence of peculiar palindromes

My son Robin came up with this: 0550, 1001, 1111, 1221, 1331, 1441, 1551, 2002... What are the next 4 numbers? Solve it today!
2
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2answers
119 views

Number sequence 6

Fill in the correct number in this sequence: $16,32,40,88,92,172,?$ The options are: $178$,$176$,$174\frac{2}{3}$,$177$, and $175\frac{1}{3}$ At first, I thought the pattern was $2x+8$ but that ...
5
votes
1answer
627 views

The “Evan” Numbers

The Even numbers are simple: $2, 4, 6, 8, 10, 12, \dots$ The "Evan" numbers follow a tricky rule: $2, 4, 6, 30, 32, 34, 36, 40, 42, 44, 46, 50, 52, 54, 56, 60, 62, 64, 66, 2000, 2002, 2004, \dots$ ...
8
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1answer
151 views

Producing Integers

Came up with the idea for this one while I was scratching my head over another "what comes next" puzzle here on Puzzling.SE I wrote a small application which takes an integer and returns another ...
4
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2answers
144 views

Arrange 18 numbered cards in a special way

Given 18 cards with numbers 1 .. 9 on them (two cards with each digit), arrange them sequentially so that the distance between the identically marked cards is equal to the number written on the card. ...
10
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1answer
789 views

Calling all number sequence lovers!

What number follows in this sequence 93 1 855 45 593 500 241 ?