CREATE TABLE table_11059 ("Year" FLOAT, "Competition" CLOB, "Date" CLOB, "Surface" CLOB, "Location" CLOB, "Score" CLOB, "Result" CLOB)

Which surface has a Date of 24 25 apr?
SELECT "Surface" FROM table_11059 WHERE "Date" = '24–25 apr'
SELECT "Surface" FROM "table_11059" WHERE "Date" = '24–25 apr'