Table: college_faculty
Columns: sno
college_code
faculty_name
designation
qualification
department
experience

Question: Which departments have M.Phil(Maths)?
SQL: SELECT "department" FROM college_faculty WHERE "qualification" = 'M.Phil(Maths)'

Question: How many faculty members have 20 years of experience? 
SQL: SELECT COUNT("designation") FROM college_faculty WHERE "experience" = '20 years'