an intricate knot tied by Gordius, the king of Phrygia, and cut by the sword of Alexander the Great after he heard that whoever undid it would become ruler of Asia
any very difficult problem; insoluble in its own terms
marriage of two people from different races or different religions or different cultures; "the families of both partners in a mixed marriage often disapprove"
the title of a newspaper or magazine; usually printed on the front page and on the editorial page
a listing printed in all issues of a newspaper or magazine (usually on the editorial page) that gives the name of the publication and the names of the editorial staff, etc.