Think about placing dots on a flat surface. You want as many pairs as possible to be separated by the same distance. For any amount of dots, what is the greatest possible number of pairs that can be ...

Many children and teens are turning to artificial intelligence for help with homework, questions about their health and body and personal problems before turning to an adult, according to a new ...

Place any number of dots on a two-dimensional plane—say, a piece of paper—and measure the distance between each pair. If you rearrange the dots, how many pairs could be positioned exactly the same ...

North Korean leader Kim Jong Un went on an inspection of a new plant that makes weapons-grade nuclear material this week. There, the state-run media reported that Kim said that Pyongyang was planning ...