Riddles, Puzzles & Problems: Smellcome to Fartsville

Aunt Murgatroyd is back to challenge potential problem solvers with more riddles, puzzles and problems! This time the Troublemaking Trolls are looking to turn Pleasantville, NY into Fartsville, USA, courtesy of an indigestible carbohydrate called raffinose. Can you help Aunt Murgatroyd defeat the Trolls before they upset the stomachs and noses of the entire town?