Except Disneyland and Ocean Park, how can we cover all other destinations of Hong Kong in one day?

Except the Disneyland and Ocean Park, the destinatuions of HK can be Victoria Peak Victoria Bay, Ngong Ping 360, Madame Tussauds and others.
I am not sure where you are now, so it is a little hard to arrange the best mode for you. Anyway, for convenience, here is my suggestion about the itinerary: Ngong Ping 360 - Tsim Sha Tsui, Avenue of Stars - Victoria Peak - Madame Tussauds - Victoria Bay - Cruise for viewing the beautiful night scenery
It is a little tight to cover all the destinations, so hope you can arrange your time well.