The Lego Dino Scientist EP 4 The Train Boy

After John spots a boy in a train costume, he goes and wants to ask him what year it is and a few other things. So he goes and follows him, but is stopped by his father. He tells his father he means no harm, and ask his father what year it is instead. His father then tells him the year and that he was about to take his son to school. John then ask if he could ask his son some questions after school is over, and his father allows it. What will John ask the boy when he gets back from school?