From twinkling constellations to stellar life cycles, this starry skywatching quiz will test your cosmic knowledge.

An optical illusion is a visual phenomenon where our eyes perceive something differently from reality, tricking the brain ...

Discover a tricky maths optical illusion! Spot the hidden (a-b)³ cube binomial formula among complex equations on a ...

If you've ever wondered how high your IQ really is, tackling these 13 Ph.D. D-level questions might just give you a hint. These aren't your typical trivia questions—they require deep thinking and a ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...

Challenge your brain with this 3D tunnel optical illusion! Only 1% with sharp IQ and 20/20 vision can spot the hidden word ...

A Visual brain teaser is a type of puzzle or problem that requires clever and unconventional skill and top-level observant skill to solve these types of brain teaser IQ Test. It could be a riddle, a ...

Call it pomp and circuitry. New research out of UCLA finds that ChatGPT “performs about as well as college undergraduates” when it comes to reasoning questions that often show up on standardized ...