There are new puzzles at www.puzzlebrains.com linked from the "ALICE" image although you will need to be logged in to read them.
This set is a simple PDF file which you can download and print out, although the online answer checker is still present and correct. I have not yet found the right balance between being able to show the puzzles on screen and ensuring that they print out correctly from there, so this is a temporary solution.
If you cannot see the puzzles when you log-in, or are told that you cannot see them, please let me know.
The future: I am intending to do four sets of puzzles this year (including this one.) As a result, we're asking you to pay some money.
Enjoy the puzzles - and don't forget to ask for help if you are stuck. It's supposed to be fun, not a punishment.