Today a layman friend of mine excitedly told me about a trick that he had performed on him the previous day. Taking into account that there is a possibility that he remembered it differently to how it actually was, i shall describe what he told me:
The magician asked him to think of any number. He then asked him to do various maths with this figure, dividing it and adding to it etc. After my friend had reached his final number(and apparently never having said it out loud) the magician rifflied through the deck and upon my friend calling 'stop', the two cards corresponding to my friends number popped out of the deck. For example, if his number was 23, a 2 spot and a 3 spot card both popped out the pack. I couldn't ascertain what my friend meant when he said they 'popped' out of the deck, but it sounded interesting, and i was wondering if anyone knew what this effect was called and who it was by? Oh and my initial thought was that the maths performed would always bring the same result, but the magician apparently did this on a few people and the numbers were different each time. Thanks for your help guys.


