The next time you are with a group of people, and you want to impress them with your psychic powers, try this. Number everyone in the group from 1 to however many there are. Get a piece of string, and tell them to tie it on someone's finger while you leave the room or turn your back. Then say you can tell them not only who has it, but which hand and which finger it is on, if they will just do some easy math for you and tell you the answers. Then ask one of them to answer the following questions:
1. Multiply the number of the person with the string by 2.
2. Add 3.
3. Multiply the result by 5.
4. If the string is on the right hand add 8.
If the string is on the left hand add 9.
5. Multiply by 10.
6. Add the number of the finger (the thumb = 1).
7. Add 2.
Ask them to tell you the answer. Then mentally subtract 222. The remainder gives the answer, beginning with the right-hand digit of the answer.
For example, suppose the string is on the third finger of the left hand of Player #6:
1. Multiply by 2 = 12.
2. Add 3 = 15.
3. Multiply by 5 = 75.
4. Since the string is on the left hand, add 9 = 84.
5. Multiply by 10 = 840.
6. Add the number of the finger (3) = 843.
7. Add 2 = 845.
Now mentally subtract 222 = 623. The right-hand digit (3) tells you the string is on the third finger. The middle digit tells it is on the left hand (the right hand would = 1). The left-hand digit tells you it is Player #6 who has the string.
By the way, when the number of the person is over 9, you will get a FOUR-digit number, and the TWO left-hand digits will be the number of the Player.
