This viral brain teaser presents readers with a simple math puzzle that has a missing value at the end. You need to find the missing value in 5 seconds. Can you? Let’s find out! Experts suggest ...

Show puzzle solution The last digit of the product must be 7. Because the last digits of the two factors can be only 2, 3, 5, 6, 8 or 9, one factor must end in 3 and the other in 9. The tens digit ...

Dec. 9, 2024 — Researchers found that adolescents with more symptoms of gaming addiction showed lower brain activity in the region involved in decision-making and reward processing; this blunted ...

The challenge? Find it within 5 seconds! Only those with elite observation skills and high IQs can solve this puzzle instantly. Think you have what it takes? Let’s find out! Picture Puzzle IQ ...

Love crossword puzzles but don’t have all day to sit and solve a full-sized puzzle in your daily newspaper? That’s what The Mini is for! A bite-sized version of the New York Times’ well ...

A new proof reveals the answer to the decades-old “moving sofa” problem. It highlights how even the simplest optimization problems can have counterintuitive answers. If you’ve ever moved into a new ...