Video knows exactly how old you are — without you revealing a thing

For some, the question of how old they are is about as delicate as how much they weigh or earn. If you're one of those people who don't want anyone to know your age, don't follow the instructions in this video. It will find out the truth, however well you may hide it!  

This video reveals nothing but the facts. All you need is a good head for math, or a calculator!