Chapter 4. 
--> 4, 10, 20, 22, 28, 30, 32, 34 36, 40, 42 

Chapter 5. 
--> 6, 8, 18, 22, 26,30, 38, 40, 48, 56, 60 

Chapter 6. 
--> 2, 6, 12, 14, 24, 26, 28, 34, 36, 40, 42, 46