CREATE TABLE table_16635 ("Rd." FLOAT, "Grand Prix" CLOB, "Pole Position" CLOB, "Fastest Lap" CLOB, "Winning Driver" CLOB, "Constructor" CLOB, "Report" CLOB)

What number is the Monaco Grand Prix?
SELECT "Rd." FROM table_16635 WHERE "Grand Prix" = 'Monaco Grand Prix'
SELECT "Rd." FROM "table_16635" WHERE "Grand Prix" = 'Monaco Grand Prix'