Our house is not in being used for years. Only one person is living and using only one washroom. Now we don't have water coming out from taps in other unused areas of house. Really appreciate your suggestion. House is in hot area so no issue of frozen pipe.
If your pipes are not copper or are galvanized there could be blockage due to interior of pipe rusting/corroding. With that in mind, check your faucet aerator for restrictions made from debris build-up. It would be wise to invest in a water pressure gauge so as to check pressure at several locations. Most household water pressure is between 60 and 70 psi. Also look for forgotten/hidden valves that are partially open.