27 questions linked to/from Interview Question or Pathbreaking puzzle
1k views

### A sequence named by a children's toy [duplicate]

Here's a part of the sequence: (A) (B) (C) (D) (E) 1113122113 311311222113 ... The letters are the missing members (there are 5 missing members) and A is the ...
8k views

### What is the next number and why? - 11,21,1112,… [duplicate]

Simple logic question, what is the next number and why? 11, 21, 1112, 3112, 211213, 312213, 212223, 114213, ?
439 views

### Number Sequence Puzzle [duplicate]

This is a slight variation on an old puzzle that's likely already here, but be sure to check it before you mark it as duplicate. What are the next three terms in this sequence, and why? ...
298 views

### Is this sequence new? [duplicate]

I can't help but wonder if we've seen it before. I do know however it seems to be entirely made from booleans! I can't remember any booleans?!?!?! true true false true true true false true ...
599 views

### A Strange Sequence [duplicate]

This puzzle is taken from a French bestseller I read years ago. The solution is much simpler than it looks... Find the following line in this sequence : ...
890 views

### Find the next 3 items in the sequence [duplicate]

A sequence goes as follows: A AA BA ABAA AAABBA CABBAA ACAABBBA AAACBACBAA CAACABAAACABBA ... It's an altered version of a sequence you all know! The answer ...
360 views

### in the sequence 1,11,21,1112,3112,211213…, what comes next? [duplicate]

find the next number in the sequence 1,11,21,1112,3112,211213,... think about all of the numbers and the number after it it is not 311223 you need think outside the box this is not a math question
454 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?
424 views

### What is the next number? [duplicate]

This is an easy number puzzle: 1) 1 2) 11 3) 21 4) 1211 5) 111221 6) 312211 7) 13112221 8) ??? What is the number on row 8?
214 views

### Look closely… What do you see? [duplicate]

TL;DR see below mapping between numbers and other numbers. How does the mapping work? Intel has come in about a secret organization that gathers once a week at a ...
439 views

### Find the next numbers in series? [duplicate]

Can you determine the next numbers in the below sequence? Here is the series. You need to find the possible numbers in 7th line. Series starts with 1 and it is like this. 1 1 1 2 1 1 1 1 2 3 1 1 2 2 1 ...
255 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 ...
196 views

### Think out of the box about numbers! [duplicate]

Find the next number of the 'sequence': 3, 13, 1113, 3113, 132113, ??? Thanks, and will add hints of needed. :)
112 views

### Another sequence of numbers [duplicate]

Here at Puzzling there are many sequences of numbers already. I come up with another one, that I haven't found so far. ...
137 views

### Can't solve this sequence number puzzle [duplicate]

Im almost about to give up with this, So my answers were 1311 and 1221, but both are wrong, can't manage to see other logical solution hehe. first one is because I though it was sequence where you ...

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