Jonah: Mommy, did you know that a polar bear's skin is actually black? Just his fur is white but his actual skin is black. Did you know that because it IS true!
Me: No, I don't guess I did know that. Who knew that you knew so much? I guess you know just about everything.
Jonah: NO, MOMMY! I do NOT know everything. Like, why is Wendy's called Wendy's. I have definitely never known that.