I see an eerie parallel between the answer of R’ Shach & R’ Elazar Ben Azariah in the Halacha and Mishna and Gemara Questions thread. Both are saying (somewhat) Bderech Tz’chok the same answer.
What it seems (L’aniyas Da’ati) what R’ Shach means by his answer:
Did these girls learn the PRACTICAL halachos? How about learning Basar V’chalav & Ta’aruvos, and how to use a single oven “Kosherly” and leaving the Pilpul!
That is a Gadol. Put on the spot by some “punk” (for lack of a better term) girls, he knows the Yerushalmi & gives a similar answer on the spot!