Please be more specific.

I've found it's a game by Hasbro but there is a board game version, a trivia book version, and a videogame version.

According to Hasbro's website, their products can be purchased in Hong Kong at:
- Aeon (CS Hotline 2565 3600)
- Apita / UNY / Piago (Taikoo Shing 2885 0331)
- Sogo (Causeway Bay 2833 8338)
- Toys R Us (CS Hotline 2287 1888)
- Wonderland (Tsuen Wan 2760 9833)

Outside of the above stores, they can be purchased online with minimum 7 days shipping from USA:

Board Game (Fishpond HK; $325 HKD; ships from USA)
http://www.fishpond.com.hk/Toys/Trivial-Pursuit-Family-Edition-Game-Trivial-Purs...

Book (Shop in HK; $145 HKD; ships from USA)
http://www.shopinhk.com/product.php?productid=3124999

PlayStation (digital download available for PS4 $122 HKD)
https://asia.playstation.com/hk/en/regional/gamedetails?id=28628

Hopefully the above info is a useful stepping point for others looking for Hasbro related products. If you prefer to buy locally in store, please try to contact any numbers above to confirm whether they are selling the specific item and if they have it in stock.

Store Location maps

Aeon
http://www.aeonstores.com.hk/shop_info/map

Toys R Us
http://www.toysrus.com.hk/www.toysrus.com.hk/store-locator/w1/i705/

Wonderland
http://www.wonderland.com.hk/blank-20
http://www.wonderland.com.hk/blank-16 (Tsuen Wan)