A math puzzle designed for children has left adults scratching their heads as they can't figure out why they got the 'wrong' ...
Shared by the handle Brainy Bits Hub, the puzzle reads: "Math Puzzle: 92 + 3 = 73, 75 + 2 = 22, 84 + 3 = 43, 97 + 1 = ??" The post has already gained over 2,000 views and more than 150 comments ...