CREATE TABLE table_9447 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Date" TEXT)

/What is Tie No, when Date is 18 February 1956, and when Away Team is Tottenham Hotspur?
SELECT "Tie no" FROM table_9447 WHERE "Date" = '18 february 1956' AND "Away team" = 'tottenham hotspur'
SELECT "Tie no" FROM "table_9447" WHERE "Away team" = 'tottenham hotspur' AND "Date" = '18 february 1956'