A riddle is a query or assertion that has a hidden or ambiguous which means that requires ingenuity to reply. The “world’s hardest riddle” is a riddle that has been claimed to be essentially the most troublesome to unravel. There are various totally different riddles which were claimed to be the “world’s hardest,” however there is no such thing as a definitive reply to which one is actually the toughest.
One of the well-known “world’s hardest riddles” is the next: “What has a head and a tail however no physique?” The reply to this riddle is “a coin.” This riddle is troublesome to unravel as a result of it requires the solver to assume outdoors of the field and to think about the totally different meanings of the phrases “head” and “tail.”