The first card can be any one of 12 face cards. The second card, given that the first was a face, can be any one of 11 remaining face cards. And so on...
But that includes the number of ways that the 5 cards can be arranged, so you have to divide by
So the whole thing reduces to
Altogether less than 1000. Contrast this with the possible number of 5 card hands from a deck of 52: 2,598,960
John
My calculator said it, I believe it, that settles it