There’s an old puzzle that requires the solver to form as many whole numbers as possible, starting with 1, using only the digit 4 exactly four times, together with ordinary arithmetic and algebraic ...

The word automat is the Latinization of the Greek word αὐτόματον, which means acting of one’s own will. It is more often used to describe moving machines, especially those made to resemble human or ...

The Silver Swan sits on a stream made of twisted glass rods and within a clear glass box. It preens and stares intently into its fabricated pond before swallowing up a little silver fish. When Mark ...