CREATE TABLE country (Name VARCHAR(255), Code VARCHAR(255)); CREATE TABLE countrylanguage (CountryCode VARCHAR(255), Language VARCHAR(255))
What are the names of nations speak both English and French?
    
SQL: SELECT T1.Name FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code = T2.CountryCode WHERE T2.Language = "English" INTERSECT SELECT T1.Name FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code = T2.CountryCode WHERE T2.Language = "French"