CREATE TABLE table_64592 ("Version" TEXT, "Standard name" TEXT, "Common name" TEXT, "Downstream rate" TEXT, "Upstream rate" TEXT)

What's the downstream rate for the Itu g.992.2 having a version of ADSL?
SELECT "Downstream rate" FROM table_64592 WHERE "Version" = 'adsl' AND "Standard name" = 'itu g.992.2'
SELECT "Downstream rate" FROM "table_64592" WHERE "Standard name" = 'itu g.992.2' AND "Version" = 'adsl'