Magical Spells and Objects

1. What is Thaumaturgy?
   
2. How, exactly, does one cast a spell?
   
3. How long do spells last?
   
4. Is there a limit to how many times I can cast a spell?
   
5. Do I always need to copy spells into my book?
   
6. Why can't I copy some spells into my spell book?
   
7. What on earth is the FILFRE spell good for?
   
8. How many spells can I keep memorized?
   
9. Why do I have trouble with spells when I get tired?
   
10. What happens when I've exceeded the number of spells I can memorize?
    
11. Why does Belboz take powerful spells away from me?
    
12. How can I use the KULCAD spell?