Easy
6. Minotaur
7. Diet Coke
8. The Lightning Thief
9. Satyr
10. Rick Riordan

Medium
6. Horses
7. The Titan's Curse
8. The Lotus Hotel
9. Lester Papadopoulos
10. Capture the Flag

Hard
6. Moldy garlic pizza wrapped in gym shorts
7. A snake
8. He's one of the only heroes to get a happy ending and peaceful death
9. 1932
10. The Hall of the Gods