A brain teaser is a form of puzzle or riddle that requires thought to solve. It is like a brain workout, and often requires thinking in unconventional ways or lateral thinking, while dealing with different constraints. The Greek mathematician Archimedes was one of the earliest brain teaser enthusiasts. The puzzle below relies on our spatial intelligence skills, which is an area in the theory of multiple intelligences that deals with spatial judgment and the ability to visualize with the mind's eye. These are some benefits of a strong spatial ability:
If you liked this page, you should like the Strategy Game as well.
A fisherman rowing his boat on a very small lake throws his anchor into the water. Does the water level of the lake rise, fall, or stay the same?
SOLUTION: DO NOT READ BELOW UNTIL YOU HAVE GIVEN UP
The water level will actually fall. The boat was displacing an amount of water equal to the weight of the boat and all it contents. If the anchor floated, the water level would remain equal, but now the anchor hits the bottom and it only displaces the volume of the anchor. The volume of water displaced is much less than the weight of the anchor. Thus the lakes water level falls.
You can also take our Reflex Test.
Find out more tips and resources at our main homepage here: Brain Teasers.