In China, it is customary to regard even numbers as being more auspicious than odd ones.
So, gifts are given in even numbers for the celebration of all occasions.
No. 8 has long been regarded as the luckiest number in Chinese culture. With pronunciation of 'Ba' in Chinese, no. 8 sounds similar to the word 'Fa', which means to make a fortune.
It contains meanings of prosperity, success and high social status too, so all business men favor it very much. Moreover, in some areas of China, people prefer to pay much more money for a telephone number with 8 in it.
They also favor residences on the eighth floor of buildings. In 1990s, a vehicle identification number with 8 was once auctioned off for 5 million Hong Kong dollars.