The second year of a child's life is a period of explosive cognitive growth, marked by rapid development in language, dexterity, and problem-solving. At age two, toddlers transition from sensory ...

Retired Supreme Court Justice Anthony Kennedy says he is troubled that partisanship seemed to be “creeping its way into the court,” and that the state of political discourse in the country ...

A classic riddle about a hotel bill uses misleading math to create a paradox. This type of intentional misdirection is a common technique used in magic tricks. Here’s a riddle my father told me when I ...