whose is ugly

Whose is ugly?誰的(東西)難看？

這是正確的句子。
本句的Whose是代名詞，相當於"形容詞Whose+某物"的簡化。
這是單純的問句。

如果是作比較，可寫為：
Whose is uglier?
誰的(東西)較醜？
Whose is the ugliest?
誰的(東西)最醜？

沒有上下文，連個標點符號都沒有，翻譯就是隨性了囉...

------The word "ugly" has the meaning of unpleasant to look at.If you see an ugly face woman in an unattractive body, then you can say whose is ugly means that that situates at the woman.Let me tell you the event today, because all is in simple present tense.
-----In the MTR train to New Territories,HK,a very handsome boy,17,are knocking into an ugly woman after her facial surgery.She is involving threats and some violence to ask for their mutual compensation. There are another young man ,35,who sees the event and keeps laughing at the young male student who doesn't know what's happening !But then the young and beautiful wife runs from behind after the incident towards the young man 35, and makes the incident comes to light and reveals everything on "ugliness".How does she know anyway ?

-----There are ugly scenes in many streets rioting for political reasons last months in HK. No tourists dare to visit and hence HK lost a lot of fame and riches and lives !The same happens in earthquake which are shaking off visitors' interests,but enjoys by the naughty bad residents of TW !

-----If an ugly building is built in an amusement fun-fair park involving children to fool around dangerously for entrance fees, then it is an ugly building.

-----In conclusion, there are some attractive stories with an ugly face. The "ugly duckling" becomes successful,and much admired whose origin is from the title of a story by Hans Christen Andersen.