Customs associated with the holiday include sounding the shofar, eating a round challah, and tasting apples and honey to represent a sweet New Year.
Shemini Atzeret - Simchat Torah
During the holiday, we eat foods prepared in oil including latkes (potato pancakes) and sufganiyot (jelly doughnuts) to remember how there was only enough oil for one day but it lasted eight days.
We read the megillah – the Book of Esther – twice during the holiday, which tells the story of the holiday. We exchange gifts of food and drink (mishloach manot), donate to charity (mattanot l’evyonim), and have a celebratory meal (seudat Purim).
Tish’a B’Ab is not mentioned explicitly in the Torah, as it mostly commemorates events that occurred centuries and millennia after the Torah was written.
The Talmud mentions that Five Tragedies occurred to our ancestors on the 9th day of Ab throughout the ages.