People with high intelligence and keen observation skills can spot the sand clock in this messy room. Test your visual power with this mind-boggling picture puzzle. Engage your senses to solve this ...

Brain teasers are a fun and engaging way to test your intelligence based on the choices you make while analyzing the problem. It's an enjoyable IQ challenge designed to assess your logical reasoning ...

The traditional sand timer, known colloquially as an egg timer, served its purpose well over the centuries since its development. However, [MakerPaul] realised it had some significant flaws that were ...