Offices for executive or administrative purposes and other uses which do not involve the storage, handling or distribution of products, goods or merchandise on the premises and which are determined by the Planning Board to be uses normally or customarily conducted in office buildings; and

Banks and such other financial institutions as determined by the Planning Board to be substantially similar thereto; and

Offices for physicians, dentists, architects, engineers, attorneys, accountants, insurance agents and such other professional uses as determined by the Planning Board to be substantially similar thereto.