Table: mma_fights_20
Columns: res
record
opponent
method
event
round
time
location

Question: What is Time, when Round is less than 2, and when Opponent is "Valentijn Overeem"?
SQL: SELECT "time" FROM mma_fights_20 WHERE "round" < 2 AND "opponent" = 'valentijn overeem'

Question: What is Location, when Round is "1", and when Opponent is "Joe Slick"?
SQL: SELECT "location" FROM mma_fights_20 WHERE "round" = 1 AND "opponent" = 'joe slick'

Question: What is Event, when Opponent is "Joe Pardo"?
SQL: SELECT "event" FROM mma_fights_20 WHERE "opponent" = 'joe pardo'

Question: What is Event, when Round is "1", when Location is "New Town, North Dakota , United States" and when Time is "4:12"?
SQL: SELECT "event" FROM mma_fights_20 WHERE "round" = 1 AND "location" = 'new town, north dakota , united states' AND "time" = '4:12'