0 reqs:
Clock Tower
Death Plateau
The Golem
Haunted Mine
Icthlarin's Little Helper
Jungle Potion
Monk's Friend
Mountain Daughter
Nature Spirit
Observatory Quest
Rag and Bone Man
Recipe (Dwarf)
Recipe (Goblins)
Scorpion Catcher
Shades of Mort'ton
Sheep Herder
A Soul's Bane
Tourist Trap
Tribal Totem
Spirits of the Elid

1-2 Reqs:
Between a Rock - 40 mining, 50 smithing
Big Chompy - 30 Cooking
Cold War - 34 Construction, 10 hunter
Contact - Icthlarin's little Helper
Darkness of Hallowvale - 5 Construction, In Aid of the Myreque
Eadgar's Ruse - 31 Herblore, Troll Stronghold
Eagle's Peak - 27 Hunter
Enlightened journey - 36 Crafting, 30 farming
Eyes of Glouphrie - 5 Construction, 45 Woodcutting
Fairytale 1 - Nature Spirit, High Farming
Forgettable Tale - 17 farming, 22 cooking
Garden of Tranquility - 25 farming
Hand in the Sand - 49 crafting
Horror from the Deep - 35 agility
In Aid of the Myreque - Nature Spirit, In Search of the Myreque
In Search of the Myreque - Nature Spirit
King's Ransom - 65 Defense, One Small Favour
Making History - 40 mining
Mourning's Ends Part 2 - ME1, high Agility
Ratcatchers - Icthlarin's Little Helper
Recipe (Pete) - 31 cooking
Recipe (Dave) - Shadow of the Storm, 25 cooking
Recipe (Awowogei) - 48 agility, 70 cooking
Recipe (Varze) - Have started Legends' Quest
Recipe (Skrach) - Big Chompy, 41 cooking
Regicide - 56 Agility, Underground Pass
Roving Elves - Regicide
Sea Slug - 30 firemaking
Shadow of the Storm - The Golem
Shilo Village - Jungle Potion
Tai Bwo Wannai Trio - Jungle Potion
A Tail of Two Cats - Icthlarin's Little Helper
Temple of Ikov - 42 thieving
Tower of Life - 10 construction
Troll Romance - Death Plateau, Troll Stronghold
Troll Stronghold - Death Plateau
Underground Pass - high thieving and agility
Watchtower - 40 mining
What Lies Below - 35 runecrafting, 42 mining

3-4 Reqs:
Dream Mentor - CL 85, Lunar Diplomacy, Eadgar's Ruse
Enakhra's Lament - 50 crafting, 45 firemaking, 43 prayer
Fairytale 2 - Fairytale 1, 57 Herblore, 49 Farming, 40 thieving
Family Crest - 40 mining, 40 crafting, 59 magic
Fremennik Isles - 20 Construction, 46 crafting, 56 woodcutting, 40 agility
Heroes' Quest - 25 herblore, 50 mining, 53 fishing, 53 cooking
Olaf's Quest - 50 woodcutting, 40 firemaking, high agility
One Small Favour - Shilo Village, 18 herblore, 36 agility
Recipe (Lum Guide) - nature Spirit, Witch's House, Big Chompy, 40 cooking
Royal Trouble - Throne of Miscellania, 40 slayer, 40 agility
Slug Menace - Wanted!, Sea Slug, 30 runecrafting, 30 slayer
Tears of Guthix - 49 firemaking, 49 crafting, 49 smithing
Throne of Miscellania - Heroes' Quest, 35 Herblore, 45 woodcutting
Zogre Flesh Eaters - Jungle Potion, Big Chompy, 30 fletching
Cabin Fever - Rum Deal, 42 agility, 45 crafting, 50 smithing

5+ reqs:
Desert Treasure - 53 Thieving, 50 Firemaking, Tourist Trap, Temple of Ikov, Troll Stronghold
Devious Minds - 50 Fletching, 50 runecrafting, 65 smithing, Troll Stronghold, Wanted!, Recruitment Drive
Great Brain Robbery - 30 construction, 50 prayer, Recipe (Pete), Rum Deal, Cabin Fever
Grim Tales - 45 farming, 52 herblore, 59 agility, 58 thieving, 71 woodcutting, Witch's House
Legends' Quest - Heroes' Quest, Family Crest, Shilo Village, Underground Pass, 107 QP, 56 magic, 52 mining, 50 agility, 50 crafting, 50 smithing, 50 strength, 50 thieving, 50 woodcutting, 45 herblore, 42 prayer
Lunar Diplomacy - 65 magic, 60 mining, 61 crafting, 55 woodcutting, 49 firemaking, Shilo Village
Mourning's Ends Part 1 - 50 thieving, 60 ranged, Big Chompy, Roving Elves, Sheep Herder
My Big Arm's Adventure - 29 Farming, 61 magic, Eadgar's Ruse, Jungle Potion, Tai Bwo Wannai Cleanup, Enakhra's Lament
Rum Deal - 40 farming, 50 fishing, 47 prayer, 42 crafting, 42 slayer, Zogre Flesh Eaters
Swan Song - One Small Favour, Garden of Tranquility, 66 magic, 62 cooking, 62 fishing, 45 smithing, 42 firemaking, 40 crafting, 23 runecrafting