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Questions tagged [number-sequence]

A puzzle in which the hidden pattern behind a given sequence of numbers (and, often, the next term) is to be found. Use with [sequence]

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2 votes
2 answers
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Below is a numerical puzzle that I designed. It is intended to be a culture-fair IQ puzzle, requiring only pattern recognition and arithmetic. 1, 412, 3141286, 581631412862422, 5816314128624226, ...
Nil's user avatar
  • 233
11 votes
1 answer
436 views

Below is a numerical puzzle that I designed. It is intended to be a culture-fair IQ puzzle, requiring only pattern recognition and the faculty to count. Use of a calculator should not be necessary. ...
Nil's user avatar
  • 233
8 votes
1 answer
307 views

Below is a numerical puzzle that I designed. It is intended to be a culture-fair IQ puzzle, requiring only pattern recognition and arithmetic. You can use calculators. a) 89, 289, 361 | 100289, 100 | ...
Nil's user avatar
  • 233
0 votes
1 answer
144 views

This is something that came up when prepping for mental maths/brainteasers, should be doable quickly as expected in those online assessments. I can’t find a pattern in the following 2 sequences. 1, 1, ...
Shdk Shjddh's user avatar
17 votes
2 answers
2k views

Here is a sequence I happened to work out, although I am certainly not the first one. Can you fill in the missing numbers? 10, 11, 12, 13, 14, 20, ?, ?, ?, ? NB: The sequence ends after the last ...
Anchises's user avatar
  • 421
0 votes
0 answers
99 views

This is the SHADOW Cipher in a small sample. One of my hardest, Good Luck!: Z+b s v k v x w z d o x -The Shadowed Dragon
Shadowed Dragon's user avatar
-4 votes
1 answer
175 views

It's nothing but a . . . . . . .
Nilay Ghosh's user avatar
3 votes
1 answer
475 views

What number comes next in this sequence? 40, 0, 2, 1, 0, 10, 50, 4, 0, 16 Answers must have an explanation of why the next number is what it is. Hint:
Lucenaposition's user avatar
0 votes
0 answers
219 views

You are forbidden to comment: that's not a puzzle @JKHA! And all the tags are wrong! Otherwise, I will answer: 13th of July 2025 A B C D E. Puzzle Explain why the tags are correct.
JKHA's user avatar
  • 7,968
7 votes
1 answer
519 views

1926 $\longrightarrow$ 19 1927 $\longrightarrow$ 16 1928 $\longrightarrow$ 20 1929 $\longrightarrow$ 19 1930 $\longrightarrow$ 19 1931 $\longrightarrow$ 15 1932 $\longrightarrow$ 18 1933 $\...
JKHA's user avatar
  • 7,968
3 votes
2 answers
634 views

You are given the following 4 by 4 grid of numbers. Create four groups of four numbers such that the numbers in each group share some common property. This puzzle is a (hopefully harder) sequel to ...
Wilhelm Laibach's user avatar
7 votes
2 answers
698 views

Next puzzle You are given the following 4 by 4 grid of numbers. Create four groups of four numbers such that the numbers in each group share some common property. (The placement of numbers in the ...
Wilhelm Laibach's user avatar
8 votes
1 answer
389 views

No, a Short Integer™ is not a Short Integer! If an integer conforms to a special rule, I call it a Short Integer™. Each integer can be tested. This is not a definitive list of Short Integers™. Short ...
JKHA's user avatar
  • 7,968
6 votes
2 answers
710 views

This question was in CUET UG exam this year.
Bachelor's user avatar
  • 187
13 votes
2 answers
892 views

What number belongs at ? in this sequence? 24 28 33 34 32 36 35 46 52 53 13 11 17 16 18 14 22 ? 33 19 24 Attribution: Nob Yoshigahara in The ...
Will.Octagon.Gibson's user avatar

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