Optical illusions challenging to find hidden animals are a popular type of visual test. These are not just fun challenges but also a real-time test to gauge your visual perception, attention to detail ...

Brain Teaser IQ Test: Brain teasers are not necessarily simple puzzles, as they are also a mental exercise that has taken the ...

Optical illusions are fascinating in challenging your brain and testing your IQ. These visual puzzles are more than just ...

Can you do 3D puzzles...without using your hands? Our visual-spatial intelligence test assesses your ability to mentally manipulate 3D objects, a skill that has practical significance in everyday life ...