Question: What is the series 3 with Gavin Duffy in series 5?
SQL: SELECT "Series 3" FROM "2-1787654-3" WHERE "Series 5" = 'Gavin Duffy';

Question: What is the series 4 with Sarah Newman in series 1?
SQL: SELECT "Series 4" FROM "2-1787654-3" WHERE "Series 1" = 'Sarah Newman';

Question: What is the series 3 with more than 4 seats?
SQL: SELECT "Series 3" FROM "2-1787654-3" WHERE "Seat" > 4.0;

Question: What is the total number of seats with gavin duffy in series 4?
SQL: SELECT COUNT("Seat") FROM "2-1787654-3" WHERE "Series 4" = 'gavin duffy';