Orchid Quest: Ophilia, who can be found in the Lyceum Gardens, is very interested in orchids. There are three you can bring her from the nearby jungle, resulting in 200 gold per flower.
Firefly Quest: This quest can only be done at night. Greet Otis, and he will lend you two jars. Go visit the Imperial Gardens and catch the six fireflies. After catching them all, return them to Otis to receive a jar of buttons. Dahlia would be happy to take those off your hands. For this quest, you receive lots of experience and 1000 gold.
Doll Quest: Fantine has lost her doll Molly. If you find it lying around the city, first make sure to fix it up a bit by bringing it to Cyrene's seamstress.
Feather Quest: In the Imperial Gardens, you'll find a feather. Bring that to Cyrene's Fletcher who will make it into a quill. Bring the quill to Raphella. The autograph you get in return would make Sulis very happy. With the sheet music she gives you, return to the theatre and greet Emelio nine times. Then give the music to him for 1500 gold.
Scrag Quest: The Cyrenian Lighthouse has scrags in their basement. The gravedigger, located by the Pantheon, would be happy to exchange them for some gold. Don't forget to bring some prickly pear!
The Drunkard: Go to Lucia in the kitchens of the Imperial Palace, and say WORK. Go to drunk outside bar and say LUCIA HAS WORK the drunk will follow you, lead him back to lucia and she'll reward you on entrance.
Bird Quest: Go to Saervio - he's the man in the vineyards on the soutwest side of Cyrene. Say "work". Saervio will offer to pay you for killing the blackbirds plaguing the vineyards. Kill the birds and give them to him for 60gp each. I don't know if there's an xp bonus too.
Bread Quest: Go to Indigo's Paw and buy a loaf of Elusian Bread for 150gp. Go to Artisan Plaza west of the fountain and give the bread to Paloma so she can feed the pigeons. There's no gold for the quest, but I think there's a bit of xp.