What\u2019s better to cheer up a gloomy, rainy Sunday than a big, brain-busting crossword? Here are 72 large-size puzzles that will entertain you for hours, whatever the weather. And, to add to your enjoyment, there are \u201cfun facts\u201d to enhance some of the answers. So rain, rain, don\u2019t go away . . . you\u2019re got something terrific to solve today.