Imagine being able to read someone else’s mind over the phone...
During a phone call, you ask your friend to take out a banknote (Euros ONLY!!!) from her purse. She must keep the value of the note secret and then read out the serial number but skip one digit.
Without asking any questions, you can immediately reveal which digit she left out!
The application does all the hard work for you: all you have to do is to enter the serial number as it is read out to you.
Have fun being a Mentalist!!