This is pretty easy to do. Simply play the Crosswords Adventure and complete the first puzzle as normal. Once you finish, take a screenshot of all the answers and then reset the puzzle. Now you can just type all the answers in as it is the exact same puzzle.
Please
check out this fantastic list of Crosswords solutions put together by
Noodles Jr for current solutions.
Everybody has the same adventure puzzles and the adventure maps change each month. Here is the first puzzle for the April 2017 adventure map.
Doing it this way you can also unlock the following achievements-