It’s not often that 5-year-olds can grasp questions at the frontiers of computer science, but it can happen. Suppose, for instance, that a kindergartner named Alice has two apples, but she prefers ...

A math puzzle that looks deceptively simple is leaving many people online scratching their heads. Shared on X this week by user @BholanathDutta, the brainteaser sparked heated debate over the correct ...