Question: Which country has the Highest mountain of Rettlkirchspitze?
SQL: SELECT "Country" FROM "2-1185126-1" WHERE "Highest mountain" = 'Rettlkirchspitze';

Question: What is the average height with the Highest mountain of Hochgall?
SQL: SELECT AVG("Height (m)") FROM "2-1185126-1" WHERE "Highest mountain" = 'Hochgall';