Question: What is every value for population (2006) with a Romanian mother tongue?
SQL: SELECT "Population (2006)" FROM "1-189893-1" WHERE "Mother Tongue" = 'Romanian';

Question: What is the lowest population(2011)?
SQL: SELECT MIN("Population (2011)") FROM "1-189893-1";

Question: What is the lowest population(2006) when there is a 1.06% in 2011?
SQL: SELECT MIN("Population (2006)") FROM "1-189893-1" WHERE "Percentage (2011)" = '1.06%';

Question: How many values for population(2011) correspond to a 1.40% in 2006?
SQL: SELECT COUNT("Population (2011)") FROM "1-189893-1" WHERE "Percentage (2006)" = '1.40%';

Question: What is every value for percentage(2006) with a Polish mother tongue?
SQL: SELECT "Percentage (2006)" FROM "1-189893-1" WHERE "Mother Tongue" = 'Polish';