Table: flyers_1967_68
Columns: date
visitor
score
home
decision
attendance
record

Question: Record of 18–15–6 belongs to what lowest attendance?
SQL: SELECT MIN("attendance") FROM flyers_1967_68 WHERE "record" = '18–15–6'

Question: Decision of parent, and a Home of philadelphia, and a Record of 20–16–7 is on what date?
SQL: SELECT "date" FROM flyers_1967_68 WHERE "decision" = 'parent' AND "home" = 'philadelphia' AND "record" = '20–16–7'

Question: Decision of parent, and a Visitor of Philadelphia, and a Date of January 27 had what score?
SQL: SELECT "score" FROM flyers_1967_68 WHERE "decision" = 'parent' AND "visitor" = 'philadelphia' AND "date" = 'january 27'