Figuratively speaking

You can use any deck for this trick. A spectator can shuffle it. It works best with 2 spectators.

First, ask spectator 1 to think of a number between 5 and 15, and to whisper it quietly to spectator 2.

Now take the deck facing you to "make a prediction", and memorize the top and bottom card. For your prediction, write on a piece of paper the card on top of the deck when face-down, and put it in the box for example.

Next, with you closing you eyes, ask spectator 1 to deal the number of cards corresponding to their number, and to look and remember the last card they've dealt. They can put the rest of the deck on top and cut it.

Now take back the deck and make the second prediction. Go find your key-card you previously predicted, and count (including this card) the number of cards between it and your second key-card (excluding it) : that's the number the spectator are thinking of. The card just above your second key-card is spectator 1's card : write it on a piece of paper and put it in the box. Finally, cut the deck between this card and your second key card.

You can now ask spectator 2 to do the same thing as spectator 1 : deal cards and remember the last one. They can cut the deck too or shuffle it.

Now say the spectators' number out loud, and take their cards out of the deck (or you could also ask them). Take back your predictions too, but keep in mind they're inversed !

You can finally reveal the predictions you made.