Verified answer

as heavy as gold

as high as a mountain

as deep as the sea

as cold as ice

as white as snow

as good as a horse

as black as coal

as brave as a hero

as nice as a rose

as ugly as a monster

as light as a feather  

as blue as the sky

as green as grass (молодо-зелено)

as strong as iron

as cool as a cucumber (невозмутимый; спокойный; хладнокровный)

as busy as a bee