CREATE TABLE table_204_405 (id DECIMAL, "team 1" TEXT, "agg." TEXT, "team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

how many ties occurred in the second round ?
SELECT COUNT(*) FROM table_204_405 WHERE "2nd leg" = "2nd leg"
SELECT COUNT(*) FROM "table_204_405" WHERE "2nd leg" = "2nd leg"