Different planets have different year lengths- only on Earth is a year 365 days. There is bound to be some planet in the universe whose years are structured such that 25 Earth years only correspond to 15 of its years.
Nice google search there bud. Anyway... Is Paul lying about his age? That or the dates 1980 and 1985 are B.C.
And the winner is..... (Drum roll please) Nobody! Nobody got it. xD The answer was "Paul was born in 2000bc" A few of you got close, but none got the answer right!