CREATE TABLE table_204_824 (id DECIMAL, "no." DECIMAL, "train no:" TEXT, "origin" TEXT, "destination" TEXT, "train name" TEXT)

which train number has its destination in kannur ?
SELECT "train no:" FROM table_204_824 WHERE "destination" = 'kannur'
SELECT "train no:" FROM "table_204_824" WHERE "destination" = 'kannur'