conversations.from: human
conversations.value: Solve the math problem: Bert fills out the daily crossword puzzle in the newspaper every day. He uses up a pencil to fill out the puzzles every two weeks. On average, it takes him 1050 words to use up a pencil. How many words are in each crossword puzzle on average?
conversations.from: assistant
conversations.value: At 7 days a week, it takes Bert 2 * 7 = 14 days of daily crossword puzzles to use up a pencil.
  Since Bert does one puzzle a day, each crossword puzzle has 1050 / 14 = 75 words.