Brain teasers and puzzles are great ways to exercise one of the body’s most important organs; they help stretch it and force it to find solutions to complex problems. This brain teaser can be solved in just a matter of seconds.
In the teaser, the test is to work out which bottle of the seven pictured will fill up first. According to the people behind the teaser, only those with a high IQ can solve it in 15 seconds or less.
Didn’t get it? The key is to look at which bottles the water will flow into ... Read even more
