Question: What is the Halil Mutlu when the world record is Olympic record and the 138kg is 305kg?
SQL: SELECT "Halil Mutlu ( TUR )" FROM "2-18508174-2" WHERE "World record" = 'Olympic record' AND "138kg" = '305kg';

Question: What is the world record when the 138 kg is 137kg?
SQL: SELECT "World record" FROM "2-18508174-2" WHERE "138kg" = '137kg';

Question: What is the Halil Mutlu when the world record is Olympic record and the 138kg is 167kg?
SQL: SELECT "Halil Mutlu ( TUR )" FROM "2-18508174-2" WHERE "World record" = 'Olympic record' AND "138kg" = '167kg';