There are plenty of “intelligence tests” circulating on the internet at the moment.
You have fun and whacky Facebook tests, slightly more serious surveys, and the verified IQ tests – which can often be expensive and time-consuming.
To make things a little more entertaining, here are a few of the most intriguing puzzles to test your brain power.
Which letter do the red dots form together?
A Playbuzz quiz shared this tricky test that can suggest whether or not you have a photographic -or eidetic- memory.
People with photographic memories can recall visual information from memories despite very little exposure to them.
Take the quiz to find out if you are among the 1% who can pass.
Can you see these lines moving?