Romeo and Juliet Quest:

To complete this quest, first talk to Romeo in the center of Varrock. Then find Juliet in the second floor of a building right outside Varrock in the east. Talk Romeo and to Father Lawrence who will tell you to find a potion shop right behind the sword shop in the south of Varrock. He will ask you to find Cadava berries wich are located outside of Varrock at the south (king of purple) when you have one Cadava berry, bring it to the guy in the potion shop and he will give you a Cadava potion. Hand it to Juliet and then talk to Romeo and he will say that you have ended the quest. The quest gives you 5 quest points, and you may gain some RuneScape money.

Rune Mysteries Quest:

Do the rune mysteries quest and mine essence, and sell it for 35 RuneScape gold each. Or go near level 30 wild and collect big bones, it is guarded by level 32 skeletons so I recommended that you are a high level like 40 or 45. There should also be a steel scimitar, pick it up and when your inventory is full sell the scimmy and the big bones to RuneScape money. The big bones should sell for like 400 RS gold each.