Wait, let’s keep the problems to the actual trivia. Grab your calculator (yes, you can use it), a piece of paper, and a pencil, and let’s solve some math problems!

But when math problems ... (And adults, of course!) These math puzzles test your brain and critical-thinking skills and ...

The Viral Japanese Math Problem In Japan in the 1980s, 90% of 20-year-olds were able to solve this math problem. Now only 60% of people in that same age group were able to solve it.