Dot Squares Solution
It's fairly easy to see 5 dots squares as shown below. Tilt your head a bit and you'll find 4 more squares that are slightly larger. Then find 2 more large squares at a different angle. There are 11 squares.
HOW MANY TRIANGLES DO YOU SEE SOLUTION
How many triangles are located in the image below?
There are 16 one-cell triangles, 3 nine-cell triangles, and 1 sixteen-cell triangles.