DAY 201
Credit: GAMES Magazine--October, 1997--Mildred K. Henderson (adapted)

If your birthday were January 9, and you were born in the 20th century, the common abbreviated form of your birthday would always state the current year: 1/9/01 - 1/9/99. This phenomenon would stop in the year 2000. (1/9/00 would not be the current year.) When would it start again, and what would your birthday have to be?

Answer:

Your birthday would have to be February 1 and the abbreviation curiosity would start on Feb. 1, 2100---2/1/00. This would not work in the year 2000 or any year in the 21st century because there is no "0" (zero) date in February.