You Know the Number was created in 1986.
You Know My Name - Look Up the Number - was created on 1967-06-08.
You Know What was created in 2005.
I Know You Know I Know was created in 2011.
I Know You Know was created in 2009.
We Know You Know was created on 2007-04-10.
If I Know You was created in 2008.
I Know Who You Are was created in 2009.
You have to know your birthday, or at least what year you were born in, then count the number of years since then.
KNOW-FM was created in 1967.
You Know What to Do was created on 1995-11-20.
I Know About You was created on 1996-06-06.
I Know What I Like was created in 1986.