As the biggest single digit, the number nine has always been associated with "living a long life," according to company spokeswoman Nancy Park.
The nine-day promotion begins at exactly 9 a.m. on September 9, 1999.
The 9th, 99th, 999th and 9,999th participants who log onto the game's Web site will win a three-day trip to Cheju Island. Another nine contestants will win one-day trips.
In addition, 99 people will be chosen randomly to receive a new mobile phone equipped with Internet access.
LG Ad designed the promotion, but won't disclose the quiz topic before the event begins.
Copyright September 1999, Crain Communications Inc.