IQ, short for intelligence quotient, is a measure of a person’s reasoning ability. Many colleges and universities also use exams similar to IQ tests to select students. Think that you’re observant enough to spot the subtle differences between pictures? Get your eyes ready because this is tricky> Visual puzzle: Can you find the man hidden in the photo?

Solving riddles and picture puzzles is a great way to give your brain the exercise it needs. Brain games like sudoku, chess, and scrabble can help improve your critical thinking skills, sharpen your memory, and boost your productivity in life.

If you haven’t found the answer yet, don’t worry; we have it here. Others found the inaccuracy difficult to see, and I was one of the few who missed the tiy detail. When you see it, however, you’ll know immediately away from that something isn’t quite right!