Age Now = Year Now - Year of Birth (if the person has had their birthday this year, and one less if they have not). You now have all the information required to work out, for yourself, the answer to this and similar questions.
1980
People turning sixteen in 2015 were born in 1999.
If you were born earlier in the year, you would currently be 16. If you were born later in the year, you would be turning 16. (This is with a current date of 2012.)
If you were "3" or turning "3" in 2012 you would have been born in 2009.
As of March 6th, 2010 :- If you were 60 you would have been born between March 7th, 1949 & March 6th, 1950.
If you were born before today in the calendar year (March 16th) you would be 67 If you were born after today in the calendar year (March 16th) you would still be 66, but you would be turning 67 this calendar year.
1980
1992 (today = 16 March 2013).
Because there was no year '0'; If you were born in 1BC you would be turning 2015 in the year 2016. If you were born in 1AD you would be turning 2014 in the year 2016.
As of March 3rd, 2010 you would have to be born in the year 1996(if you were born on or before March 3rd) or you could be born in 1995 ( if you were born after March 3rd.)
1994.
If you are turning 66 in this year, you would have been born in 1944. If you just turned 65, 1945.
A person turning 41 in 2013 would have been born in 1972.
You did not specify which year you were born I would be born in 1979, but your year of birth is unable to be determined.
People turning 36 in 2013 were born in 1977.
People turning 57 in 2014 were born in 1957.
If you were born in 1937, you would be turning 76 in the year 2013.