Baking with unkilned tiles on Yom Tov: are we concerned about unnecessary exertion or completion of a vessel? • May one shecht animals likely to be mortally wounded on Yom Tov? • May one use a bellow or blow on a fire to fan flames on Yom Tov? • May one use matches on Yom Tov? • What is required to redesignate drying fruits for consumption on Shabbos or Yom Tov?