In what year did Christmas and New Year fall on the same year?

Why this works

This riddle plays with the concept of time and the calendar year. Each year, Christmas falls on December 25, and New Year's Day is celebrated on January 1 of the following year. However, since Christmas occurs at the end of the current year and New Year's Day marks the start of the next, they are indeed part of the same year in terms of the calendar, making the answer "every year." It's a clever twist that highlights how we often think of years in a linear fashion!