How many dolphins can you spot in the picture?

Optical illusions and brain teasers are a fun way to challenge our minds. This dolphin brain teaser hides 17 dolphins in one image—some easy to spot, others cleverly camouflaged within the shapes of other dolphins. The first row has 5, the second and third rows each have 6 dolphins.

If you enjoyed that, try the tiger puzzle next. Though it looks like a calm jungle with a few tigers, there are actually 16 hidden in the scene, blended into foliage and other shapes.

For a math challenge, count the squares in another image. If you find 40, you’ve solved it! These puzzles sharpen focus, boost pattern recognition, and give your brain a fun workout.