I was bored and took a test asking fairly simple questions; as a person that did not excel in maths (unfortunately) I bungled many of those answers. So fellow maths Poalers, please explain to me the logic how to solve questions such as: "Bob likes 25 but not 24, he likes 400 but not 300; he likes 144 not 145. Which does he like: 10, 50, 124, 200, 1600. I don't see a pattern nor do I know a math formula to solve this type of question. How is this solved?