Hello how may I help you? I have questions about certain world records. OK, what record would you like to know? Who has won the most swimming olympic medals? That belongs to Michael Phelps. What's the longest snake ever recorded? The longest snake ever recorded was about 25 feet long. Who is the longest living person ever? The oldest person to ever live was 122 years old. Who is the smartest person in the world? The smartest person in the world was believed to be Stephen hawking.