You cannot. You must wait for it to expire.
It is just for experience, therefore the name.
Buy the "EXP BOOST (1 hour) which doubles all experience and then do quests worth high experience.
Your Pokémon gets an Exp. boost... Was that so difficult to figure out?
Kill a lot of monsters. As far as I know, there are no quests to get 100k exp at one time.
You can kill them (very hard since they are lvl 99), but I don't know how you deactivate them. Try looking on YouTube.
You complete quests and kill monsters to gain exp.
The best place to farm in AQWorlds is in Crash site (Dwakel). Just talk to the girl there and accept the first three quests, and then kill the dwakels there. It gives good gold and exp.
Impossible. It is considered cheating and will resulted i your account being suspended and all your badges being removed.
No. Would be too easy to boost if they did.
By defeating trainers and battling wild Pokemon. If you want to boost EXP, you can use a Lucky Egg (which Prof. Juniper gives you in Chargestone Cave) or having the battling Pokemon hold an EXP. Share.
The only known way to boost your own "EXP" is to enter competitions.
Well, i been asking that loads of time but here the most common answer i got: They do quest that has no fighting but you get exp. points.