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 ...

Montgomery happened to find strikingly similar behavior in the prime numbers— specifically, the correlations between the positions of the notorious zeros of the Riemann zeta function. They weren’t ...

What time does the clock show? Show puzzle solution Label the lower hand pointing left A, the higher one pointing left C, and the one pointing right B. Hands A and C are pointing exactly at hour marks ...

Insects that tuck away wings; a protist with an accordion-like neck — studying these clever creases may inspire foldable structures for drones ...