Daily Quests
Complete Arena x5: 4,000
Enter Boss Battle x1: 7,000
Compete in Arcade x1: 3,000
Enter Infinite Dungeon x1: 3,000
Slay 500 monsters: 3,000
Complete all Daily Quests: 8,000
Total: 28,000 gold a day
*Daily quests refresh at midnight GMT +9
Weekly Quests
Complete Arena x35: 10,000
Enter Boss Battle x6: 7,500
Compete in Arcade x5: 5,000
Enter Infinite Dungeon x5: 5,000
Slay 30,000 monsters: 7,500
Hero +5 Enhance x1: 5,000
Reach max Hero level x5: 7,500
Slay 30 final bosses: 7,500
Complete all Weekly Quests: 20,000 and 10 rubies
Total: 75,000 gold, 10 rubies
*Italicized weekly quests represent those you can't complete just from doing daily quests. Other than that, completing all daily quests every day is more than enough for weekly quests.
Total spoils for completing all quests in a week: 271,000 gold, 10 rubies.