Magician shows five
double back cards. Each card has two different numbers printed on either side
of it. There are five paper cases, one for each card. The cases are used to
completely hide the numbers on the cards.
The magician asks a
spectator to mix the five cards then place them one by one in the five cases in
any sequence and with any side of the card being front or back, according to
his free will. After placing the cards in the cases he should place them on the
As he does this, the
magician looks away. He has no idea which case has what card and with what
number on it.
Magician turns towards
the audience and instantly calls out the total of the numbers on the face of
the cards as arranged by the spectator. The spectator is asked to take out all
the five cards from the case one by one without turning them.
Amazingly the total of
the numbers on the faces of the cards matches exactly with the total magically
called by the magician. This can be repeated. The total will most likely be
different every time.