Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
--------
Question: Which semi-aquatic carnivorous mammals belong to the genus 'Lutra'?

Answer: otter

Question: What was Elvis's last No 1 in his own lifetime?

Answer: suspicious minds

Question: Who led the charge up San Juan Hill in Cuba in 1898?

Answer:
theodore roosevelt