conversations.from: human
conversations.value: I'm stuck on this math problem: There have been 15 "Where's Waldo?" books published. Each book has 30 puzzles to find Waldo. The average person takes 3 minutes to find Waldo in a puzzle. How long would it take to find every Waldo?
  Can you help?
conversations.from: assistant
conversations.value: There have been 450 puzzles because 15 x 30 = 450
  It would take 1,350 minutes to find all the Waldo's because 450 x 3 = 1,350