Table: iron_chef_episodes
Columns: overall_episode
original_airdate
iron_chef
challenger
challenger_specialty
theme_ingredient
winner

Question: How many episodes had Yutaka Ishinabe as the iron chef specializing in french cousin?
SQL: SELECT COUNT("overall_episode") FROM iron_chef_episodes WHERE "iron_chef" = 'Yutaka Ishinabe' AND "challenger_specialty" = 'French'

Question: What episode number originally aired on November 21, 1993?
SQL: SELECT MAX("overall_episode") FROM iron_chef_episodes WHERE "original_airdate" = 'November 21, 1993'

Question: Who was the challenger on Episode 5?
SQL: SELECT "challenger" FROM iron_chef_episodes WHERE "overall_episode" = 5

Question: How many iron chefs were there when the challenge specialty was Japanese cuisine?
SQL: SELECT COUNT("iron_chef") FROM iron_chef_episodes WHERE "challenger_specialty" = 'Japanese'