OMG I'm So Bored ! The Activity Book for Teens: 100 Games for 12-17 years old | Sudoku - Word Search - Mazes - Mandalas | Hours of Fun for Boys & Girls

OMG I'm So Bored ! The Activity Book for Teens: 100 Games for 12-17 years old | Sudoku - Word Search - Mazes - Mandalas | Hours of Fun for Boys & Girls

Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love (Thinking Books for Kids)

The Logic Puzzle Book for Teens: 100 Challenging Brain Games and Puzzles