Table: mma_fight_results_25
Columns: res
record
opponent
method
round
location

Question: What round did the fight last when Mikhail Ilyukhin's record was 15-5?
SQL: SELECT "round" FROM mma_fight_results_25 WHERE "record" = '15-5'

Question: What method did Mikhail Ilyukhin win the fight in round 1 when his record was 13-5?
SQL: SELECT "method" FROM mma_fight_results_25 WHERE "round" = '1' AND "res" = 'win' AND "record" = '13-5'

Question: What was the method of resolution when Mikhail Ilyukhin's record was 4-0?
SQL: SELECT "method" FROM mma_fight_results_25 WHERE "record" = '4-0'