16 buttons, 4 in each row, take away 6, so that the sum of each row is an even number horizontally and vertically

First row 1 4

Second row 1 2

Third row 1 3

Fourth row 1 2 3 4

The places with numbers indicate buttons, and the numbers indicate the location of the buttons. The position can also be changed accordingly.

Extended information

Brain broadly refers to thinking and ideas. A sharp turn refers to driving to another route when there are obstacles ahead that prevent the car from traveling in a straight line. A sharp turn is usually when there are special circumstances and it is necessary to quickly leave the usual route and take another route.

Brain teasers mean that when your thinking encounters special obstacles, you must quickly leave your accustomed thinking and think about the problem from other aspects. Generally refers to some intelligence questions that cannot be answered using usual ideas.

Brain teasers originated in ancient India. Brain Teasers is a series of single comic jokes published by Times Culture on December 6, 1989. It ranges from comic-style questions on the previous page to unexpected answers after turning the page.