Seven automobiles (an Acura, a Buick, a Chevrolet, a Dodge, an Edsel, a Ferrari and a Jeep) are parked in a parking lot having ten spaces, equally spaced, numbered 1 through 10 from north to south.
The Acura is as far away from the Buick as the Chevrolet is from the Dodge.M
The Ferrari is parked next tot the Edsel.
Space 1 is always filled; spaces 8 and 9 are always empty.