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All answers having "Huh!" as clue:

3 Character Answers:

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GEE

WHA



4 Character Answers:

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NEAT

WHAT



7 Character Answers:

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SAYWHAT

WHATTHE



8 Character Answers:

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NEWSTOME

PARDONME



9 Character Answers:

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COMEAGAIN



10 Character Answers:

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IDONTGETIT

THATSWEIRD



12 Character Answers:

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IDONTGET{IT}



14 Character Answers:

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THEMOREYOUKNOW



15 Character Answers:

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IDIDNTCATCHTHAT

WHATINTARNATION

YOUREBREAKINGUP