45
55 is the most common speed limit on any 2 lane road. 65 is typical on most 4 lanes. 70 is common on interstates.
There are many common surnames in Nicaragua. A few of the most used names are Gonzalez, Perez, Dia, and Moran.
In most countries, on most roads, there is no minimum.
The most common use of a governor is to limit the top speed of the vehicle...most newer cars have them and the speed is set by the manufacturer...they can be changed with a flash programmer for that specific vehicle.
The humps do not affect the speed limit. Other signs will indicate the speed limit. In most towns and cities the default limit is 30 mph, but in some places it can be less.
Most states don't have truck speed limits. So in a state like Colorado, New Mexico, Arizona, etc. (where the speed limit is 75), trucks can do the speed limit.
In most states it is the passenger car speed. Some states make them go the posted truck speed limit.
Except for the Washington to Boston corridor (were 125 is common and 150 not unheard of) the most common 'high speed' speed limit is 84 mph. Note - lots of track is limited to less than 50 mph.
As with most 'western' countries, it varies.
35-65 MPH on most highways in the US
70 mph