"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you love solving riddles, unlocking mysteries, or completing any other brain-boosting activity, puzzle ...

When was the last time you sat down to do a puzzle? We often associate jigsaw puzzles with childhood, but over the past few years, puzzles geared specifically towards adults have exploded in ...

For years, crosswords have been a popular pastime, stretching brains and broadening vocabularies. The happy click of a pen against paper has for years been a sign of victory over a vexing clue. But in ...