Table: fighter_results_12
Columns: res
record
opponent
method
event
round
time
location

Question: What was the time when the method was TKO?
SQL: SELECT "time" FROM fighter_results_12 WHERE "method" = 'tko'

Question: How many rounds was the fight when the record was 4-0?
SQL: SELECT COUNT("round") FROM fighter_results_12 WHERE "record" = '4-0'

Question: Who was the opponent when the round was more than 2?
SQL: SELECT "opponent" FROM fighter_results_12 WHERE "round" > 2