The puzzle question read, 'If A=1, C=3, and E=5, then what will be the product of B*D*A?' This puzzle was shared on June 17. The question was shared on Twitter by page Puzzle Tricks. Check out a few answers shared by people here.Īn individual shared this answer, '0,1,2,3,4,6,8,9.' A few others wrote this as the answer, '6,9,4,1,2,0,8.' A third commented, 'All numbers 1 to 10 can be seen.' A fourth shared, '6,0,8,0,9,4,1.' What do you think is the correct answer to this question? Were you able to solve this puzzle?Įarlier, another maths brain teaser had captured the interest of many. Many people also took to the comments section of the post and tried to guess the answers.

Since being posted on social media, it has been liked several times. When your brain assesses the same color against the lighter background on the right, it makes the bar a darker gray.A post shared by Math Quiz, Game and Puzzles post was shared just a few days ago. When the left side of the bar is viewed in a dim, or darker, situation (the dark gray background), your brain naturally lightens it up. How does it work? Well, it’s called a “simultaneous contrast illusion.” Your brain fills in the information it believes is missing–that is, the lighting. The gray bar is actually one consistent color throughout. Or does it? Cover everything but the bar, and you’ll see that instead of moving from a lighter shade of gray to a darker one as you move towards the right. This picture obviously shows a graded gray bar on a graded gray background. Most of the time, shadows are reliable, but in the world of optical illusions they aren’t! Shades of Gray: The Gradient Illusion In this illusion, we find out how much we rely on other information, like shadows, to accomplish this. Then we are forced to not just identify the object itself, but to also decide where that object is in time and space.

Our eyes view an object and send information through the optic nerve to the brain for identification. This illusion evidences how we rely on shadows to give us information about what we see. Does your brain get fooled into thinking that the ball has moved? Is the ball higher? Does it have the appearance of flying through the air, once the shadow is separated from the object? What about when the shadow bounces? Does your brain think the basketball bounces too?

Now watch what happens when the shadow is added to the basketball. It actually keeps the same course from the bottom left side of the screen to the top right side.

Brain games optical illusions