My friend Alberto loves riddles. I remember that the year in which the Olympics were held in China told me the following:
Today's number coincides with the years I am but before a week passes there will be a date on which, the number of the day will be one fifth of the age I will be then.
In what year was Alberto born?
The conversation took place on February 29, 2008. At that time Alberto was 29 years old. In the next six days he turned 30, which is a fifth of six (the date before the passage of a week). Thus Alberto was born in March 1978.