CREATE TABLE table_8360 ("Date" CLOB, "Name of ship" CLOB, "Nationality" CLOB, "Tonnage" FLOAT, "Fate" CLOB)

What was the average tonnage for Beatus, raided on 18 October 1940?
SELECT AVG("Tonnage") FROM table_8360 WHERE "Date" = '18 october 1940' AND "Name of ship" = 'beatus'
SELECT AVG("Tonnage") FROM "table_8360" WHERE "Date" = '18 october 1940' AND "Name of ship" = 'beatus'