How to obtain the distance (in Km/Miles and in minutes) by road ?. for example using googlemaps

You can use TravelDistance and related functions to find the distance by road. Example:

TravelDistance[Entity["City", {"Tokyo", "Tokyo", "Japan"}], 
 Entity["City", {"Osaka", "Osaka", "Japan"}]]

(* Quantity[511.606, "Kilometers"] *)

td = TravelDirections[{Entity["City", {"Tokyo", "Tokyo", "Japan"}], 
   Entity["City", {"Osaka", "Osaka", "Japan"}]}];

GeoGraphics[{Thick, Line[td]}]