Here are the possible solutions for answer to ''how did you know '' clue
Answer
Clue
Relevancy
yes
Clue
"Did you figure out the answer to this clue?" answer
esp
Clue
Answer to ''How did you know?''
If you have it, you might know what this answer is without reading the clue
these
Clue
Answer, when pointing to this answer, to the question "Which letters answer this clue?"
alaska
Clue
Old riddle: "What did Delaware?" Answer: "I don't know, but ___"
Definition
a kind of dessert; a heavy fabric
huh
Clue
Answer that probably won't earn you any points on a game show unless the prompt is "This one-syllable sound usually indicates someone doesn't know what you're talking about"
Definition
used to express surprise
iago
Clue
"Demand me nothing: what you know, you know: From this time forth I never will speak word" is his last line
iris
Clue
Goo Goo Dolls song that you probably know from the way John Rzeznik snarls "But you don't even know who I am"