In opening Quest Journal, in the RS gold game, you'll be able to gain access to the list of missions both available and ones that have already been completed. It's a simple way of tracking which of them you have to finish. When you select one it will open a window with details of how you can complete a next step that may help you complete the task.
In reading through Journal and looking through the journal, you'll see that there are several levels of quests : Novice, Intermediate, Experienced, Master and Grandmaster. Quests like Cook's Assistant, Rune Mysteries, Ernest the Chicken, Dwarf Cannon, Vampire Slayer, Restless Ghost or Recruitment Drive are classified as Novice since they don't meet any prerequisites for their completion.
The adventurers who wish to finish them don't need to upgrade their skills in many ways and typically don't face tough tasks. On the other side quests that are of higher difficulty such as Enlightened Journey (Intermediate), Lost City (Experienced), Dream Mentor (Master) or Recipe for Disaster (Grandmaster) will require cheap OSRS gold players to attain certain levels in a few of the skills , along with a small number of unique items and an enough level of combat to cope the threats.