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Questions tagged [sequence]

A puzzle about a series or collection of symbols, elements, or other objects, whose chosen ordering obeys a specific logical rule, which is usually to be determined.

A sequence is a series or collection of symbols, elements, or other objects, whose chosen ordering obeys a specific logical rule. In puzzles, the aim for the solver is usually to deduce or discover the rule behind this ordering, and/or supply the next - or missing - member(s) of the sequence.

For sequences consisting specifically of numbers, letters, or words, use the appropriate tags , , or as well.

298 questions
12
votes
2 answers

Yet another sequence with letters and a question mark

A quick one. What is the next element of this sequence? v, u, s, p, l, g, a, Z, R, I, ?
Florian F
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9
votes
1 answer

Missing element of the sequence

Could you find the missing symbol in the sequence shown below? Hope you like :-)
ahstat
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  • 6
8
votes
1 answer

What comes next in this sequence? Choose from 4 options

What comes next in this sequence? Why? Choose from the 4 options.
RogerA
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  • 8
  • 57
7
votes
1 answer

What will be next at the bottom row and why?

There is a stack made of 6 squares. As you can see there are yellow squares between red ones. The question is what will be the next row like? And why?
Alper91
  • 535
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6
votes
2 answers

Computer sequence

You have created a computer, but it is not working, only printing sets of 4 characters in a sequence. If you can predict the next 3 sets, then you can restart the computer and set it up so you can actually use it. The computer will print out 1 more…
Rohit Jose
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5
votes
3 answers

Can a cube have a positive and negative on each face with no crossover?

This cube has a positive (blue) and a negative (black) bar on each face. That is 2 flat bars per face. On each face 1 bar has the opposite polarity to the other. I have hidden the faces to make the problem clearer. I only want to run a single wire…
CarbonMan
  • 153
  • 3
3
votes
1 answer

Double or Halve Riddle

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 host of the game show laughs at you.…
Display name
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3
votes
5 answers

Find the missing shape in this grid

What shape should go in the empty square?
user9771
3
votes
1 answer

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.
Dennispuz
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3
votes
2 answers

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.
Dennispuz
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  • 9
3
votes
1 answer

Last item of the sequence?

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.
John Barron
  • 47
  • 2
3
votes
2 answers

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 pic is just for analogy, you still should end the original sequence, not this one.…
nicael
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2
votes
2 answers

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 instance: We have 20 in the first circle, then 15…
user52050
2
votes
1 answer

What is the 7th line?

.2 <,1,< ^0^.0^0.^ >1>1>1>,1>1>1>1,> v2v2v2v2v2v2v2v.2v2v2v2v2v2v2v2.v <1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<,1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1,< What comes next in this sequence?
user39732
2
votes
1 answer

Hard IQ questions with arrows

I have been looking at it for hours without a solution Any help would be greatly appreciated
user1998844
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1
2