These riddles are fun, but I think the one about the boy could be worded a bit better. At the end it should be stated that as the boy was thinking about he noticed that each parent gave 49, and he kept 1, so 49 + 49 + 1 =99. Because for the longest time I was thinking 97 + 1 + 1 + 1 = 100, so which one is missing?