Try Imp Catcher. Its the simplest one.
The Smithing Quest
A lot of quest give you exp lamps. You can also check the reward of the quest before you start it.
Soul wars and the mage training area.
These following quests will give you fishing exp. Free-player quests. None Member quests. The Fishing Contest: 2437exp. Land of the Goblins:3000exp. Rum Deal:7000exp. Sea Slug:7175exp. Swan Song:10000exp. Tai Bwo Wannai Trio:5000exp. The Fremennik Trials:2812exp. Check out Sal's Realm of Runescape for Quest Guides.
276 - Wolf Whistle1,000 - Spirit of Summer1,500 - Summer's End4,000 - The Curse of ArravTotal: 6,776 Experience
400 exp.
Just create a new account and do quests that give you defence exp and train just defence skill, then train attack skill.
Exp and ability to wear a Rune Platebody and Dragonhide.
75 exp each.
There is a quest called "The Digsite" .It gives you at least 15,000 exp. Its an intermediate kind of quest and its a lot of fun http://runescape.wikia.com/wiki/The_Dig_Site
Lunar Diplomacy
See related links. At the end of the same page you'll find additional quest rewards, in which you have at least some choice, to which skill you want to apply the rewards. However, please note that getting quest rewards can never be your main method to get (in this case) magic experience, because of the relatively small amounts of experience received.