“Abracadabra, make two more pennies appear!” my daughter said as she shifted the paper plates to magically show three pennies total on the table. Money appearing from thin air is everyone’s dream, and ...

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 ...

A classic riddle about a hotel bill uses misleading math to create a paradox. This type of intentional misdirection is a common technique used in magic tricks. Here’s a riddle my father told me when I ...