CREATE TABLE table_59534 ("Opposing Teams" TEXT, "Against" FLOAT, "Date" TEXT, "Venue" TEXT, "Status" TEXT)

What is Opposing Teams, when Against is '20', and when Venue is 'Twickenham , London'?
SELECT "Opposing Teams" FROM table_59534 WHERE "Against" = '20' AND "Venue" = 'twickenham , london'
SELECT "Opposing Teams" FROM "table_59534" WHERE "Against" = '20' AND "Venue" = 'twickenham , london'