Little João always lies on Tuesdays, Thursdays, and Saturdays, and on the rest of the days of the week, he always tells the truth. One day, Little Pedro meets João and the following dialogue occurs.

- Little Pedro asks: What day is it today?
- João answers: Saturday.
- Little Pedro asks: And what day will it be tomorrow?
- João answers: Wednesday.

On what day of the week did Little Pedro meet João?
Clearly, Pedrinho met Joãozinho on a day when he lies. Saturday is ruled out because otherwise, he would be telling the truth. Therefore, the meeting between them was on a Tuesday or Thursday. It could not have been on a Tuesday, because then the following day could not be a Wednesday. Thus, the only possibility for the day of their meeting is Thursday.