The turn-of-the-last-century author Dean Rivers published several books of puzzles and riddles, one of the largest of which was a 1903 anthology of more than a thousand brainteasers called Conundrums, ...

Lewis Jesse Bridgman was a prolific turn-of-the-20th-century author and illustrator known for his work on a large number of children’s picture books in the late 1800s and early 1900s. As his ...

Think you really know America inside out? From its towering monuments and buzzing cities to the rivers and states that shaped its story, the U.S. is packed with history, culture, and symbols that ...

Think you are a bit of a genius problem solver? Then have a go at our challenging riddles and tricky brain teasers. You may already think you're a know-it-all when it comes to quizzes but this is a ...