Riddles with sequences

Puzzles, riddles, brain teasers, conundrums, logic questions in pictures. There are sequences created according to some rules. In these puzzles, brain teasers and conundrum you need to continue the sequence by choosing one of the given answer options. To check your answer, click on the «Answer» button located below the task. After this, the correct answer and explanations will appear. Below you can select other questions on this topic. Typically each topic has 20 questions or more. At the same time, the complexity of logical problems gradually increases. First there will be easy questions, then medium, then difficult. Try to complete tasks as quickly as possible.

Question - 16

This is a difficult brain teaser. Here, square cells with small circles inside are sequentially located. Find the principle of formation of this sequence and choose one option to continue this sequence. You may need to apply unconventional thinking.

Answer

Correct answer = 4.

Here the sequence is from left to right. Square cells can contain five types of small circles, each of which is repeated cyclically according to its own rules. Upper left circle: two missing, one in place. Upper right circle: two in place, one missing. Central circle: two in place, two missing. Bottom left circle: one missing, two in place. Bottom right circle: three missing, one in place.

1	2	3	4	5	6	7	8	9	10
11	12	13	14	15	16	17	18	19	20

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