Question: how many episodes in big brother season 18
Answer: Week 13 Head of Household , Part 1 ( `` Hang In There Kitty '' ) : Head of Household , Part 2 ( `` Snap Shot '' ) : Head of Household , Part 3 ( `` Scales of Just - Us '' ) : Following Corey 's eviction , the HouseGuests engaged in their final battle in the Hang In There Kitty Part 1 of the Final Head of Household competition .