Yes this year you sonsabitches 2009-1o
If you count UNC and Memphis in the Final Four in 2008.
George Mason 2006 LSU 1986
no they haven't ever
The lowest seed to ever win a NCAA Basketball title was Villanova, ranked seed #8. They won the tournament in 1985. Lower seeds have made it to the Final Four (George Mason and Louisiana State, ranked 11th, made it in 2006 and 1986 respectively) but never won. UCLA in 1980 was ranked 48th and made it to the championship game.
No
6 teams have and they are UCLA, UMASS, North Carolina, Duke(2), and Illinois
No, they all are still ranked as they originally seeded in their division.
no
Yes, quite often. The most recent was LSU in 2006. Arizona won the title as a #4 seed in 1997.
St. Louis hosted the Final Four in 1973, 1978 and 2005.
yes
#8 Butler vs #11 VCU 2011