We’ve come up with 20 brand-new riddles for adults to test your critical thinking ... and a lifelong enthusiast of math puzzles. She lives in Washington, DC with her husband and two daughters.

From math for adults (like calculating the tip at a restaurant and dividing the check among six friends) to solving Sudoku puzzles, math is a part of all our lives. Don’t worry: You don’t have ...

The internet contains mathematical puzzles and illustrations that test our observational skills. Simple equations that adults struggle with, while elementary school students solve them in seconds ...

Think you’re smart enough? This brain teaser stumps most, but high IQs above 130 can solve it in 9 seconds. Are you ready for ...

Tricky Math Puzzles for Students (and Adults): Engaging in math puzzles and riddles is not just healthy for our brain but also like entertaining ad refreshing, like embarking on an exciting mental ...

So, why do adults often struggle to find the right ... Read also: Unraveling the simple math riddle that keeps puzzle lovers up at night. Is your solution correct? Elementary school math riddle ...

Harder logic puzzles for adults, however, are often deceptively ... Like some of the hardest math puzzles and math riddles, these puzzles can get very complex. If you look for them online, you ...