The best way to get exp I would say is the Mini-Game Soul Wars, try it you might like it 13 Minute game and depending on your Levels in Strength etc. you get a good amount of exp.
You get exactly 187.5 xp per steel platebody in runescape which is probably the best way to raise smithing cost wise
One way is to do the Sorceress Garden mini game and make Sq'irk juices. They give pretty good xp for thieving.
you can't trade xp from other players. the only way to get it is minigames or training.
Most people recommend chins. But training on fire giants for a while is ok xp too.
Train at demons. Much better xp and you wont have to heal.
Most people suggest chins.
Not that I know...the only way to get them is to participate in a random event
Gertjaars is the best account on the Runescape hiscores. All his levels add up to 2376, and his total xp is 1,699,056,298.
XP- something like 10-20k
There is no way, unless you add all your XP up.
101,333 xp.
13,034,431 xp