CREATE TABLE table_28180840_15 (act VARCHAR2, name_name_of_act VARCHAR2)

What is the total number of modern grannies performed?
SELECT COUNT(act) FROM table_28180840_15 WHERE name_name_of_act = "Modern Grannies"
SELECT COUNT("act") FROM "table_28180840_15" WHERE "Modern Grannies" = "name_name_of_act"