Exercising your brain is as crucial as working out, but very few people think about boosting their brainpower.

Test your 140+ IQ level with this fun brain teaser! Find the odd number hidden in the '256' sequence series within 11 seconds to boost your observation and thinking skills.

Test your thinking skills with this fun and tricky brain teaser! It’s harder than it looks—and most people don’t get it right on the first try. Can you? #BrainTeaser #PuzzleChallenge # ...