Add Yahoo as a preferred source to see more of our stories on Google. We can calculate our age in dog years, so why not Leap Day years? Unlike the canine formula — anyone can multiply their age by 7 ...

Earlier this week, a puzzling maths problem set for 14-year-old kids in Singapore went viral after it was posted online by a TV presenter. Since then, adults the world over have been scratching their ...

Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively. Albert: I don’t know when Cheryl’s birthday is, but I know that Bernard does not know too. Bernard: ...

We can calculate our age in dog years, so why not Leap Day years? Unlike the canine formula — anyone can multiply their age by 7 to get the answer — the Leap Day math applies to people born on Feb. 29 ...