The technical term for informal, conversational speech is perhaps colloquial speech.
Answer: Carew's murder gives Mr. Utterson the opportunity to search Mr. Hyde's house and learn more about him.
Mr. Hyde has bumped into a gentleman called Carew. When this man says hello to Mr. Hyde, he beats him to death. The police later finds a letter in the dead body, addressed to Mr. Utterson, and decide to contact him. This gives Mr. Utterson and the police a chance to explore Hyde's living quarters, where they find the murder weapon and Hyde's check book.
Professor because it is a person
Your answer is True! In Animal Farm the animals come together and make a law that all animals are equal and no animal is better than anyone else. Similarly in "Harrison Bergeron" all civilians wear "bands" that create equality by producing brain waves that made everyone at the same level of intelligence.