Do not be surprised if you don't find a 'fourth floor' in most of the buildings you visit in Hong Kong. They think the word 'four' sounds like 'death' in Chinese and because of this reason, 'four' is often believed to be unlucky. So, in buildings there, you find the 05th floor right after the 03rd floor which is indeed a fun fact! For them, number 8 represents wealth, and therefore, that's a lucky number.