what bus should i take from timesquare to hongkong international airport and how much?

It is suggested to take shuttle bus no. A11 and get off at Wan Chai Fire Station, Hennessy Road. Then you can see the Times Square. In this way, it takes around an hour and the fare is 40HKD. Bus no. E11 and E11A also will do.

Alternatively, you can take Airport Express Train to HK Station. Then walk through an underpass to Central Station. Change to Island Line and get off at Causeway Bay. Get out of exit A and walk there.