Here’s a subtle way of finding out the age of a person, using the Age Prediction Machine, otherwise known as Toshibareru Mosukitosaundo (Mosquito) according to Google Translate. This tests one’s age by emitting a high frequency sound similar to the buzzing of a mosquito, where the capability of the listener is used in its calculations. It won’t pinpoint the exact age though, breaking down its results into various categories such as Young to Teenagers, Early 20’s, Barely 30’s, 40 years and above.