The kill the witch queen quest is glitched at the reward part. Once the Witch Queen is dead, go back to Waheetu, the Goblin Elder, and talk to him "About the witches around here".
He will reward you with a measly 800 gold.
The glitch is for unlimited money after completing this quest:
Receive the 800 gold from the quest completion then talk to Mareeyt for your free 5 beers then return to Waheetu and click the witches option again and you will receive the 800 gold again. I'm posting this for in hopes that someone who monitors the game will see it and fix the glitch. ( I'm sure no one will mind the free gold while it's being fixed. But I believe this takes away from the difficultly of the game.) Sorry all.