Ключевые слова: activity, arrow, background, blue, brainteaser, challenge, child, circle, circular, color, concept, conundrum, design, education, entrance, exit, find, flat, game, illustration, image, intricate, isolated, jigsaw, kids, labyrinth, leisure, line, logical, maze, medium, mental, mess, mix, mystery, object, originative, paper, pastime, play, problem, puzzle, puzzling, quiz, round, school, search, shape, way,