Teacher to half-asleep Pappu in class, "Who invented Steam Engine?" Pappu: What Sir? Teacher: Very good. It's correct. James Watt, it is. Moral: Sleeping improves your General Knowledge!
Chemistry Teacher: What happens when Potassium Iodide is mixed with Sulphur? Pappu: Kiss. Teacher: How? Pappu: KI+2S = Kiss!
Pappu to Bunty: I'm not scared of proposing a girl. Bunty: Then what's the problem? Pappu: I'm scared about what would happen if she agrees!
Santa: If you are good, Pappu, I'll give you this bright new 500 rupee note. Pappu: Haven't you got a dirty old 1000 rupee note?