Technically the taco riddle where they say "My friend eats three of his. I eat 11," could mean they still have 10 tacos left because the phrasing can technically mean they ate 11 of their friend's tacos
I'm gonna call these types of riddles Fuck You Riddles, because the answers can all end with "fuck you" Example: What walks on four legs in the morning, two legs in the afternoon, and three legs at night? A guy with seven legs, fuck you.