CREATE TABLE "head_of_household_and_hand_grenade" (
  "task_no" real,
  "date_given" text,
  "head_of_household" text,
  "hand_grenade_user" text,
  "hand_grenade_recipient" text
);

Question: What date was Rica head of household?
SQL: SELECT "date_given" FROM "head_of_household_and_hand_grenade" WHERE "head_of_household"='rica';

Question: What is the latest task number for which Cathy is head of household?
SQL: SELECT MAX("task_no") FROM "head_of_household_and_hand_grenade" WHERE "head_of_household"='cathy';

Question: Who is the head of household for task number 7?
SQL: SELECT "head_of_household" FROM "head_of_household_and_hand_grenade" WHERE "task_no"=7;

Question: Which task had Cathy as the hand grenade user?
SQL: SELECT "task_no" FROM "head_of_household_and_hand_grenade" WHERE "hand_grenade_user"='cathy';

Question: What is the task number on January 22, 2010 (day 111)?
SQL: SELECT MAX("task_no") FROM "head_of_household_and_hand_grenade" WHERE "date_given"='january 22, 2010 (day 111)';