Ralph likes 25 but not 24 he likes 400 but not 300 he likes 144 but not 145 Why does he like 200?

Well, isn't that just a happy little riddle! Ralph likes numbers that are perfect squares, like 25, 400, and 144. Since 200 is also a perfect square (200 x 200 = 40,000), that's why Ralph likes it too. Just like painting, sometimes things just fit together perfectly!