Only two--the real question is 'how did they get in there?'
You are sharp, unless someone told you the answer ?
@VAL3941 nobody told me noffin. ?
@memorylikeasieve
Then you just plain sharp ! Lol
How many Psychiatrists? 1, but the bulb has to want to change.
How many men? none, a real man isn't afraid of the dark (and presumably doesn't want to read a book!)
Ok, I'll leave some for other people!
One, unless they are testing a hypothesis, then they made need a blind and double blind test and may depend if it's a qualitative or quantative study
Was there an official punch line?