Start with a deck of cards. Before the trick, sneak a peek at the 10th card in the deck. Memorize it. Ask your volunteer to add the first and second digit of their number together. For instance, if he ...

LOOK, I’ve got nothing up my sleeves. There are magic tricks that work by sleight of hand, relying on the skill of the performer and a little psychology. Then there are so-called self-working magic ...

In our most recent Insights puzzle, I challenged readers to figure out how certain magic tricks work. The tricks in question were of the sort where the magician somehow divines the identity of your ...