The quickest and most enjoyable word workout around! If you are on your travels, relaxing at home, or on the daily commute, these puzzles offer you an instant brain workout that won't take up too much of your time. Tackle these 400 quick crossword puzzles on the train, tube or bus journey or pack them in your bags on your next holiday or weekend away. Fun, fast and furious you will while away the time and give your grey matter an enjoyable workout at the same time. Puzzles taken from previously published titles.