Paul is 20 years old in 1980, but only 15 years old in 1985. How is this possible?

Can you solve this riddle?

Hint: He was not born in a leap year, did not change his age on official documents, and is not a modern-day Benjamin Button.

Scroll down to see the correct answer to the riddle.

Let´s go!

SEE THE CORRECT ANSWER BELOW:

The years are in B.C., not A.D. as you probably assumed. Based on the system we use to number the years, the years counted downin B.C. (but
they weren’t counting backwards back then).