Terms for subject Saying containing chalk and cheese

English	Russian
as like as chalk and cheese	похожа свинья на быка, только шерсть не така (igisheva)
chalk and cheese	как день и ночь (igisheva)
not to know the difference between chalk and cheese	путать червей с бубями (igisheva)
not to know the difference between chalk and cheese	червей от бубей не отличать (igisheva)