Puzzles - which image is the odd one out?

Puzzles, riddles, brain teasers, conundrums, logic questions in pictures. You need to find a geometric figure or image that does not match the others. In these riddles, brain teasers and logic problems, all the images except one correspond to some rule. 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 - 19

This challenging logic riddle-conundrum features nine images of circles connected by lines. Circles have two types of coloring. Which image is redundant? You may need to think outside the box.

Answer

There are two images of each type of coloring here. Only one image is colored uniquely. Coloring rule: there are always two ends to the image, the upper end is number 1, the lower end is number 5. In total, the image has 5 circles arranged sequentially from 1 to 5. Types of coloring of circles in images: 1) first, second and fifth; 2) first, third and fifth; 3) second and fifth; 4) fourth and fifth. The unique image has no pair and is colored according to the rule: first and fifth.

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

-----------------------------------------------------------------------------------------------------------------------------