what is it that you know but never knew?
114080
Ignorance is freedom.
1078760
keep low until you know what it is that you don`t know cause nobody know what you don`t know.
1152478
no one will ever know...
587493
i have no idea abt it.
650975
What are you talking about, nobody knows that information here
1124910
WOW good question \nI couldn't tell ya Ive got no idea
741351
Don't know, you tell me.
230759
the greatest mystery known to man. ...\n\nSPAM
311528
Never heard of it in that sense!!
865092
Maybe about something you've always wondered about?
152203
I dunno, have u discoverd that?
142527
there is no wat that i know of
873593
I don't know, what do you think it is?
751520
dude, you know nobody knows about that crap.....so why do you ask ?
7319
That's one of the great unanswered qustions.  Mankind may never know.
986786
never heard or seen that one
269545
wtf? it's impossible to know..