From my SIL about her two oldest:
On Friday night we were doing Ben's (5) Parsha questions. OD said, "It's great that you remember so much about the parsha!" Ben replied, "Yeah- I have a stupid-pendous brain."
On Shabbos morning, Hen (3) asked me "Is it still Shabbos?" (I think she wanted to do something 'very muktza') I told her it was. She said, "But not so Shabbos, right?"