Wikibooks:Books with pages that contain manual categories/Puzzles

1. en:Puzzles/Non-scientific puzzles
2. en:Puzzles/Medium Sequence 1/Solution
3. en:Puzzles/Analytical Puzzles/Surprising Limit/Solution
4. en:Puzzles/Rubik's cubes
5. en:Puzzles/Statistical puzzles/3 Bags of Marbles/Solution
6. en:Puzzles/Arithmetical puzzles/Hotel Refund