"What is the fourth digit of pi?" leads to something strange...

  Question: What is the fourth digit of pi?
  Answer: 3
  Question: What is the fifth digit of pi?
  Answer: 1
  Question: What is the sixth digit of pi?
  Answer: 4
  Question: What is the seventh digit of pi?
  Answer: 1
  Question: What is the eighth digit of pi?
  Answer: 5
  Question: What is the ninth digit of pi?
  Answer: 9
  Question: What is the tenth digit of pi?
  Answer: 2
  Question: What is the eleventh digit of pi?
  Answer: 6
  Question: What is the twelfth digit of pi?
  Answer: 5
  Question: What is the thirteenth digit of pi?
  Answer: 3
  Question: What is the fourteenth digit of pi?
  Answer: 1
  Question: What is the fifteenth digit of

note that this is just pi with every digit labeled +3 and the last digit is wrong... (this was a single query)