well he did the 10th question without writing a single thing and the propter is known for mental torture anyway the last question was meant to torture the mind the other questions were meant to test you ability to collect correct information like he said it demanded that you cheat
rephrase 10th question rules: you can choose to leave and try again next time but, if you choose to do it and get it wrong i will eliminate you from ever becoming a chinin ever again and almost half of the group rose their hand because they fell for the mental trap but naruto rose his hand and he showed his cocky attitude by giving his little statement