Brainteaser for June 30, 2011

Brainteaser for June 30, 2011 Question: Some people believe that January 1, 2000 is the first day of the 21st century. Other people believe that the honor belongs to January 1, 2001. But everyone should agree that January 1, 2002 is the first "sum-day" of the new century- when you write out that date in stand ard notation, it becomes 01/01/02, and 1+1=2. More generally, a sum-day is a date in which the day and month add up to the year. With that in mind: A) What is the last sum-day of the 21st century? B) How many sum-days are there in the 21st century? Click here to check your answer. Find more Brain Teasers, Puzzles and Games to challenge the mind at The Brainteasers Network

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