CREATE TABLE table_78204 ("Date ( s )  conducted" TEXT, "Polling organisation/client" TEXT, "Cons" TEXT, "Plaid Cymru" TEXT, "Lib Dem" TEXT, "Others" TEXT, "Lead" TEXT)

What is the cons for lib dem of 8% and a lead of 27%
SELECT "Cons" FROM table_78204 WHERE "Lib Dem" = '8%' AND "Lead" = '27%'
SELECT "Cons" FROM "table_78204" WHERE "Lead" = '27%' AND "Lib Dem" = '8%'