CREATE TABLE "list" (
  "name" text,
  "type" text,
  "population_2011" real,
  "population_2006" real,
  "area_km_2" real
);

Question: What is the sum of the area in km with a population of 110 in 2011?
SQL: SELECT SUM("area_km_2") FROM "list" WHERE "population_2011"=110;

Question: What is the average population in 2006 that has more than 5 people in 2011 and an area 5.84km?
SQL: SELECT AVG("population_2006") FROM "list" WHERE "population_2011">5 AND "area_km_2"=5.84;