A challenging maths puzzle requires you to uncover the logic behind unconventional equations. Only a few have succeeded.

As an academic discipline, logic is the study of reasoning. Logic puzzles, therefore, involve making a series of inferences ...

Container Logic Puzzles Carroll’s puzzle was the likely ... Get the help you need from a therapist near you–a FREE service from Psychology Today.

Test your mental mettle with this brain-twisting assortment of word, logic and number puzzles by Fraser Simpson, creator of The Globe and Mail’s cryptic crossword.

Test your mental mettle with this brain-twisting assortment of word, logic and number puzzles by Fraser Simpson, creator of The Globe and Mail’s cryptic crossword. You can play the giant ...