Each day, you'll have 3 easy, 2 medium and 1 hard Quest to complete.
You can view these by doing /dailies
.
You can see both your progress & percent complete of each Quest by typing the /dailies
command.
You can reroll your Quests 1 time for £250, as long as no progress has been made on any Quest.
You are rewarded for completing each Quest as well as a separate reward once you've completed all of the Quests.
Rewards for completing Quests vary.