11 possible answers to
Answers with 3 characters: WHA Answers with 4 characters: WHAT Answers with 5 characters: HOWSO Answers with 7 characters: SAYWHAT WHATTHE Answers with 8 characters: HOWSTHAT SAYAGAIN Answers with 9 characters: COMEAGAIN BEGPARDON Answers with 15 characters: IDONTUNDERSTAND YOUREBREAKINGUP