CREATE TABLE table_12413 ("7:00" TEXT, "7:30" TEXT, "8:00" TEXT, "8:30" TEXT, "9:00" TEXT, "9:30" TEXT, "10:00" TEXT)

What 7:30 has tout le monde en parle as the 8:00?
SELECT "7:30" FROM table_12413 WHERE "8:00" = 'tout le monde en parle'
SELECT "7:30" FROM "table_12413" WHERE "8:00" = 'tout le monde en parle'