Add Yahoo as a preferred source to see more of our stories on Google. Who doesn't love a clever brain teaser puzzle? Also known as rebus puzzles, these visual brain teasers will challenge your wits!

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Researchers at Duke University monitored participants’ brain activity while they completed simple math ...

This brain teaser involves figuring out the equation which is a test of logic and creative thinking. By carefully examining ...

Brain teasers are short, clever puzzles designed to make the mind think in fresh ways. They often look simple, but they push us to use logic, patience, and careful observation. X users found the brain ...

Brain teasers are little quizzes that are designed to make you think in various different ways. They may seem to be easy initially, but they tend to bring twists. Getting them resolved is like a good ...

From NATO phonetic to the Greek alphabet, plus historic military codes, Morse Symbols, and other tricky letter systems, there’s something for everyone in this quiz. We’ve created a 26-question ...

Did you know that IQ tests questions with answers can be a great way to unlock your potential? These tests are packed with logical reasoning questions that can test your ability to identify patterns, ...

Are you ready to test your observation skills today? Optical illusions and "find the hidden object" puzzles are more than just a fun way to pass the time. They are a great workout for your brain, ...

Are you smarter than a British spy? Then prove it. GCHQ, one of the UK's spy agencies, is publishing a "Puzzle Book" of riddles and brain-teasers written by British spooks. The puzzles range from ...