What is the first name and last name of the youngest student whose GPA is above 3?
select stu_fname, stu_lname from student where stu_gpa > 3 order by stu_dob desc limit 1
What is her GPA?
select stu_gpa from student where stu_gpa > 3 order by stu_dob desc limit 1
What are the full name and GPA of the oldest student whose GPA is below 3?
select stu_fname, stu_lname, stu_gpa from student where stu_gpa < 3 order by stu_dob asc limit 1