CREATE TABLE Student (fname VARCHAR2, age VARCHAR2, StuID VARCHAR2, SportName VARCHAR2)
CREATE TABLE Sportsinfo (fname VARCHAR2, age VARCHAR2, StuID VARCHAR2, SportName VARCHAR2)

Find the first name and age of the students who are playing both Football and Lacrosse.
SELECT fname, age FROM Student WHERE StuID IN (SELECT StuID FROM Sportsinfo WHERE SportName = "Football" INTERSECT SELECT StuID FROM Sportsinfo WHERE SportName = "Lacrosse")
SELECT "fname", "age" FROM "Student" WHERE "StuID" IN (SELECT "StuID" FROM "Sportsinfo" WHERE "Football" = "SportName" INTERSECT SELECT "StuID" FROM "Sportsinfo" WHERE "Lacrosse" = "SportName")