I don't know whether this puzzle is easy or hard, and whether it is nice or lame, but decided to post it anyway. It is possible later to add extra images or to edit the current ones, depending on your feedback.

Which of the yellow tiles complements the sequence formed by the grey tiles? enter image description here


This puzzle is part of this week's fortnight challenge.

  • $\begingroup$ I don't quite understand, or we looking for a yellow tile which continues the sequence or are we rearranging the yellow tiles to match the grey ones? $\endgroup$ Aug 28, 2016 at 15:53
  • 2
    $\begingroup$ @BeastlyGerbil, you need to pick one of the yellow tiles which would continue the sequence formed by the grey tiles. $\endgroup$ Aug 28, 2016 at 15:55
  • $\begingroup$ sure, ill join now $\endgroup$ Aug 28, 2016 at 16:00
  • $\begingroup$ Just a thought: might this relate to particle sizes? Water (molecule) hydrogen atom, A for atom? + proton, M muon? Things like this $\endgroup$
    – Avik Mohan
    Aug 28, 2016 at 17:17
  • $\begingroup$ @AvikMohan, it is not related to particles, but I think your type of thinking is going in the right direction. $\endgroup$ Aug 28, 2016 at 17:18

2 Answers 2


Maybe this is

the third one : the world (or world wide web)

Because :

We have here (left to right) : fire, wheel, writing, calculus, magnetism and electricity which are human discovers along time

  • $\begingroup$ That's the precise logic, there is just a more appropriate symbol than the clock there. $\endgroup$ Aug 28, 2016 at 18:04
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    $\begingroup$ @ArturKirkoryan, so the fourth, because it is a toaster : ) $\endgroup$
    – lemon
    Aug 28, 2016 at 18:05
  • $\begingroup$ Haha, it was supposed to be Roman numerals. I will accept your answer, just change it to the WWW symbol (third one). $\endgroup$ Aug 28, 2016 at 18:06
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    $\begingroup$ @ArturKirkoryan, thanks ! this is my first accepted here !! YaY ! $\endgroup$
    – lemon
    Aug 28, 2016 at 18:07

I think it may be:

The smiley emoticon


The water drop is a (realistic/relatable) image. The circle-dot is a scientific picture (hydrogen). 'A' is a letter. The '+' is a mathematical letter. The compass is a direction in radial/degree units. The 'M' is a graph. It's all ways of communicating information. The emoticon could either be visual emotion or emotes on a phone. Both are ways of communicating.

To note,

The 'world' picture I thought could refer to the web/internet, so that's bugging me. But then again you use the web to send the information, but characters etc. to convey the information. Also, I thought time, but time is information that we convey, not the numbers we use to convey the information.

  • $\begingroup$ You kinda got the logic, but still not completely there. I updated the image a little bit, may want to take another look:) $\endgroup$ Aug 28, 2016 at 17:52

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