Sorry, I was replying and my cat jumping on the key board making my answer disappear!
Cat help!!!
1. See:
http://seastop.com/wwhints.htm
2. Spider nectar cures poison but save ONE for the brazier ceremony at the snake head.
3. Ale kegs are to remind you of the things in life you can't have . . . forget about them.
4. If you are sadistic (er, resourceful) you can poke the prisoner for his info and keep his lockpicks.
5. They should open the portcullises on either side of the serpent head.
6. See: 1.
7. See: 4.
8. I don't have a clue.
9. If you were up in a loft area (accompanied by belfry spiders . . . I would love to know what that section of wall does.
10. I think you come out of it later.
11. See: 4.
12. Oomphaz are the elephant race that you may choose as a party member. They can't wear normal armor and you can't wear theirs. Only fair.