The Gathering 4 Gardner conference tries to continue some of that watercooler spirit by hosting talks and activities focused on math, music, magic, puzzling, sculpture, and much more.

Grade 6 and 7 students from Dundonald School in Saskatoon use teamwork to solve math puzzles during a math fair hosted at Tommy Douglas Collegiate on June 15, 2016.

Math-based brain teasers, in particular, can often leave us scratching our heads and thinking twice about simple equations. If you're a fan of such puzzles, we've got a new challenge for you.

Put your brain to the test with this quick math riddle. Only the sharpest minds can crack it in 15 seconds. Find out if you are one of them.

Brain Teaser to Test Your IQ: Only a genius can solve the math puzzle in 4 seconds. Are you one of them? Go ahead and test your intelligence now!

The challenge before you is to solve the math puzzle in 7 seconds. If you can do that, you will be among the elite group of people who have a high IQ and a razor-sharp brain.

How a centuries-old math puzzle helped us see inside the human brain. By Steven Strogatz Photo illustrations by Jens Mortensen Each installment of “Math, Revealed” starts with an object ...