What are some strategies to improve efficiency and accuracy when solving jigsaw puzzles?
How do different types of puzzles, such as crosswords, Sudoku, or Rubik's cubes, engage different cognitive skills?
What historical significance do puzzles have in human culture, and how have they evolved over time?
What is the psychological impact of solving puzzles on stress relief and mental health?
How do puzzle designs contribute to the level of difficulty, and what are some examples of particularly challenging puzzles?