What adult insulted Atticus? What did she say? What did Jem do as revenge, how was he punished and what signal realeased him from this task every day?

Mrs. Dubose insulted Atticus, she said, “Your father’s no better than the niggers and trash he works for!” In revenge, Jem "cut the tops off every camellia bush

Mrs. Dubose owned" with Scout's baton. His punishment was to read to Mrs. Dubose everyday in the afternoon for two hours until the alarm clock rang.