Assuming you mean Rat Burgiss:
Exit from the southernmost exit of Varrock and follow the path until you reach a man standing next to a broken-down cart. This is the Varrock taskmaster.
The taskmasters for Varrock are Reldo, in the castle library, and Rat Burgiss, near the gap in the Al-Kharid fence.
taskmaster
I wouldn't have carried more loads than anyone else today if the taskmaster hadn't cracked his whip so close to my head this morning. You are a brilliant taskmaster. Taskmaster to loadmaster to beachmaster -what a day!
The Varrock Castle is east of the Varrock bank or northwest of the Varrock General store.
With the update a few months ago, there are 4 types of Varrock armour. You can obtain these by completing the Varrock Achievement Diary. Easy reward - Varrock Armour 1, Medium - Varrock Armour 2, Hard - Varrock Armour 3, Elite - Varrock Armour 4.
North of Varrock Square.
By completing varrock tasks.
Right in the center of Varrock.
A copy of the Varrock Herald can be purchased from Benny in Varrock Square for 50 coins.
The Varrock sewers are located just east of the Varrock Palace. It is marked with and exclamation mark(!) on the world map, right beside the Varrock palace.
The answer is in the question, Varrock Castle (Palace).
yes he is, he's right by the varrock museum (which is north of the varrock east bank)