Level 1 questions:
1. Where was the hatch in the Ephebian horse?
2. Who did Astfgl meet at the end of the universe?
3. Who did Stoneface execute?
4. Who founded The Unseen University?
5. Who was the First Emperor?
Level 2 questions:
6. How did Queen Ezeriel die?
7. How long did Ku take to sink into the sea?
8. How many moons of Nasreem are there?
9. What did Truckle do to the Mad Demon-Sucking Priests of Ee?
10. What happpened at the Bay of Mante?
11. What is the name of the troll tooth fairy?
12. What was Old Stoneface Vimes' real name?
13. Where does Norris the Eyeball-eating Maniac hail from?
14. Who created the first pizza?
15. Who did the Duke of Sto Helit have assassinated?
16. Who was Rincewind's Tsortian ancestor?
17. Who were the Disc's two greatest lovers?
18. Whose horses did Conina, Cresote, and Nijel steal?
Level 3 questions:
19. How long did the Great Pyramid of Tsort take to build?
20. How was King Olerve killed?
21. What did the Creator offer Rincewind?
22. What did the gods turn the Disc's two greatest lovers into?
23. What does the Terrible Man Eating Sloth of Clup guard?
24. What happened to Bruce the Hoon?
25. What killed Laveolus' dog?
Now you've tried to answer those you can: