Image Edge Detection. The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986.

The first sum contains three alarm clocks reading 02:00 and have been added together, with the answer listed as 6. The second equation contains only one 02:00 alarm clock, alongside two four ...

The puzzle looks like a simple set of math equations but the answers clearly don't follow basic arithmetic rules. The image dares viewers to crack the hidden logic behind the numbers.

It reads, “Math with my dog.” And as the video progresses, one gets to see how the dog ends up correctly answering a simple math equation with the help of its paw.