Women and children of either gender may sit under an invalidated part of the sukka since they are not required to sit in the sukka at all.  However, if they wish to say the blessing leisheiv baSukka, they must sit under a valid part of the sukka while they say the blessing. They must also eat at least 1.9 fl. oz. of bread or mezonot while under the valid part.

Say borei pri ha'eitz or borei pri ha'adama for foods made of identifiable pieces of fruit or vegetables.

You must eat a second meal on Jewish festival (or Shabbat) day with 1.9 fl. oz., or 56 ml, of bread--even if you already said ha'motzi and ate bread at kiddush.

Fore-blessing for Ryvita and other bread-like crackers :

• Ha'motzi if they are normally eaten as a meal —even if you eat only a small amount.  The after-blessing is birkat ha'mazon as long as you ate at least 1.3 fl. oz. (39 ml, or 1/6 cup) within four minutes.
  Note If you ate less than 1.3 fl. oz. or took more than 4 minutes, do not say any after-blessing.
• Borei minei mezonot if normally eaten as a snack (after-blessing: al ha'michya) .

You must say the blessing which was designed to be said on each type of food. B'diavad, a lower level blessing will still cover the food.
From lowest to highest level, here are the food fore-blessings:

• She'hakol,
• Borei pri ha'adama,
• Borei pri ha'eitz (on common fruits),
• Borei pri ha'eitz (on the Five Special Fruits)

Less than 1/48th missing is still considered a whole loaf. So if you only have two challot (or other loaves of bread) for Shabbat, you might be able to use one loaf twice, as follows:

• Wash your hands,
• Say ha'motzi,
• Cut off a piece that is less than 1/48th of the loaf, and
• Eat it.

REASON You may consider the remainder of that loaf as still being a full loaf and you may re-use it for your Shabbat morning meal.
NOTE If you have pieces of bread or other mezonot, you may:

• Cut off less than 1/48th of the loaf,
• Eat the additional pieces of bread to make a total of at least 1.9 fl. oz. (56ml), and then
• Re-use the same loaf for Shabbat morning.

Less than 1/48th missing is still considered a whole loaf. So if you only have two challot (or other loaves of bread) for a Jewish festival, you might be able to use one loaf twice:

• Wash your hands,
• Say ha'motzi,
• Cut off a piece that is less than 1/48th of the loaf, and
• Eat it.

To fulfill the two requirements for Shabbat evening kiddush:

1. Say, or hear, the Shabbat evening kiddush blessings/segments:
   • Borei pri ha'gafen (on wine or grape juice only), OR
     Ha'motzi (on two challot if you have no wine or grape juice, as chamar medina is not permitted for Shabbat evening kiddush. See Challot for Evening Kiddush) AND
   • Mekadeish HaShabbat.
2. Establish a halachic “meal” (kovei'a se'uda) by either:
   • Drinking 4 fl. oz. (119 ml) of wine (or grape juice) within 30 seconds, OR
   • Eating at least 1.9 fl. oz. (56 ml) of bread or mezonot of any type (within 4 minutes) shortly after saying or hearing kiddush.

If you said a fore-blessing and ate a snack, but then decided to eat bread and a full meal:

• If your meal will not contain any foods that have the same after-blessing as your snack--
  • Say the snack's after-blessing, and then
  • Wash your hands and say ha'motzi.
• If your meal will contain foods with the same fore-blessing as your snack (even the same food as your snack)—
  • Do not say the snack's after-blessing.
  • Wash your hands and say ha'motzi.

The fore-blessing (bracha rishona) must be said where you eat.  However, sometimes you may begin eating in one domain and continue eating in another domain. A domain may be any physically limited area (car, house, restaurant, office building) or the outdoors (highway, park, etc.). Once you left the first place, you are considered to have had an interruption of thought (hesech da'at) and are no longer eating that original snack or meal. 
Whether you say a new fore-blessing depends on your intention when you said the fore-blessing:

• Do not say a new fore-blessing if you had intended to go to the second place, as long as the food at the second place is in the same food categories as what you already blessed on at the first place.
• Say a new fore-blessing if you had not intended to continue eating in the second domain, even if you had planned to return to that first place and continue eating.
  Exception You do not need to make a new fore-blessing if:

  • You return to the first place and even one person who was eating with you is still there, OR
  • You had eaten bread or mezonot and then left but had not said the after-blessings of birkat ha'mazon or al ha'michya, even if no one is left from before.
    Reason Since you are required to say birkat ha'mazon or al ha'michya, you are still considered to be continuing your meal.

    Note As long as you are under the same roof, do not say new blessings on food at the new place (such as when switching seats or even rooms in a restaurant).

    Exception Even if you washed your hands and said ha'motzi at the first place, say a new blessing on food that would have required a new blessing at the first place, such as new wine or any dessert other than mezonot.

There are two requirements for Shabbat daytime kiddush: Say or Hear Kiddush Segments/Blessings and Establish a Halachic Meal (kovei'a se'uda):
 
1. Say or Hear Kiddush Segments/Blessings
    You must say, or hear, the Shabbat daytime kiddush segments/blessings and someone
     must drink at least 2 fl. oz. (59 ml) of the kiddush beverage:

• Say or Hear Kiddush Segments/Blessings
  • Torah segment(s): V'shamru bnei Yisrael (even beginning from al kein).
  • Blessing over at least 3.3 fl. oz. (99ml) of drink:
    • Borei pri ha'gafen (if on wine or grape juice), OR
    • She'hakol nihiyeh bi'dvaro (if on other beverage/chamar medina).

• Drink at Least 2 fl. oz. (59 ml) of the Kiddush Drink

 
2. Establish Halachic Meal (Kovei'a Se'uda)
    You must establish a halachic meal (kovei'a se'uda) shortly after saying or hearing
    Shabbat morning kiddush by either:

• Drinking Wine--at least 4 fl. oz (119 ml) of wine (or grape juice) within 30 seconds, OR
• Eating Bread/Mezonot--at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread or mezonot within four minutes.

Note The second half of making kiddush, “establishing a meal” (kovei'a se'uda), can be fulfilled simultaneously when you fulfill the subsequent, separate Shabbat requirement for “eating a meal” but in that case, you must eat 1.9 fl. oz. of bread.
Note If you make, or hear, Shabbat morning kiddush on any beverage except wine or grape juice, you must also eat at least 1.3 fl. oz. (39 ml, or 1/6 cup) of bread or mezonot within four minutes to establish the kiddush meal. If you do not want to eat bread or mezonot, only drinking at least 4 fl. oz. (119 ml) of wine (or grape juice) within 30 seconds will fulfill all the kiddush requirements. 
Note If you have not fulfilled the kiddush requirements, you may not eat other foods, such as fruit or fish at a kiddush.
Note   Once you have heard kiddush and either eaten the required bread or mezonot or drunk the required 4 fl. oz. of wine or grape juice, you do not need to say or listen to kiddush again if you eat your actual meal later (except if you need to say kiddush for other people who have not yet heard or said kiddush).

To fulfill the two requirements for Jewish festival daytime kiddush:

1. Say, or hear, at least #b and #c of these Jewish festival daytime kiddush blessings/segments:
   a) Eileh mo'adei Adonai mikra'ei kodesh asher tikri'u otam b'mo'adam.
   Note It is not a universal custom to say the above sentence.
   b) Va'yidaber Moshe eht mo'adei Adonai el bnei yisrael.
   Note It IS a universal custom to say the above sentence. AND
   c) Borei pri ha'gafen (if on wine or grape juice), OR
   She'hakol nihiyeh bi'dvaro (if on other beverage/chamar medina).
   Note For Jewish festival (or Saturday) lunch and havdala, you may use any beverage (chamar medina) commonly drunk for social purposes (not just for thirst) in the country in which you are saying kiddush (say the blessing she'hakol instead of borei pri ha'gafen where appropriate).
   Note There is never any requirement on an indvidual to drink kiddush wine (except at the Passover seder), but the kiddush wine must be drunk by one or more persons.
2. Establish a halachic “meal” (kovei'a se'uda).
   You must establish the halachic meal required for kiddush shortly after hearing Jewish festival morning kiddush. See How To Fulfill Eating Jewish Festival Second Meal.
   
   Note If you make Jewish festival morning kiddush on any beverage except wine or grape juice, you must also eat mezonot or bread to establish the kiddush meal. If you do not want to eat bread or mezonot, only drinking 3.3 fl. oz. (99 ml) of wine or grape juice within 30 seconds will fulfill all of the requirements for kiddush.  If you have not fulfilled the requirements for kiddush, you may not eat other foods, such as fruit or fish at a kiddush.

To say any after-blessing/bracha achrona (al ha'michya, al ha'gafen, al ha'eitz, borei nefashot, or birkat ha'mazon), you must:

• Eat at least the minimum volume (1.3 fl. oz.--39 ml, or 1/6 cup) of solid food within four minutes, or
• Drink at least 3.3 fl. oz. (99 ml) of liquid within 30 seconds.

If Did Not Eat Minimum

Do not say bracha achrona if you did not eat 1.3 fl. oz. (39 ml) within four minutes.

If Did Not Drink Minimum

Do not say bracha achrona if you did not drink 3.3 fl. oz. (99 ml) of any potable liquid within 30 seconds. Note You may not combine the volume of solid food to liquid food or liquid food to solid food that you ate and drank in order to make the minimum volume for an after-blessing.

If Did Not Eat or Drink Minimum

Size: How To Calculate

Ounces: Weight or Volume

The minimum quantity for saying after-blessings is based on volume, not weight. If you eat a pack of pretzels whose volume is 1.3 fl. oz., even though the label says it only weighs 0.5 oz., you would say an after-blessing of al ha'michya.

Figuring Volume

Figuring Volume: Non-Mezonot Foods

You may not include the volume of fish or meat or other foods eaten together with bread or matza in order to reach a total volume of 1 fl. oz., which is required for saying the after-blessing of birkat ha'mazon. However, you may combine the volumes in order to say borei nefashot.

Figuring Volume: Unswallowed Pits/Seeds

When eating foods with seeds or pits (olives, pomegranates, etc.), do not include unswallowed seeds or pits to reach the 1.3 fl. oz. (39 ml, or 1/6 cup) minimum volume needed to say an after-blessing. You may include only what you have swallowed.

D'Oraita Cases

For d'oraita cases (halachot from the Torah), such as eating matza at seder or drinking wine for kiddush, we use a more stringent minimum measure:

• Eat at least 1.9 fl. oz. (56 ml) of solid food within four minutes, or
• Drink at least 4 fl. oz. (119 ml) of liquid within 30 seconds.

Timing

When To Start Counting

You may start counting the period of four minutes (for eating at least 1.3 fl. oz.) or 30 seconds (for drinking at least 3.3 fl. oz.) any time after the fore-blessing as long as it is continuous from when you first swallow until you have swallowed the minimum amount.

To fulfill the two requirements for Jewish festival evening kiddush:

1. Make Kiddush
   Say, or hear, the three Jewish festival evening kiddush blessings/segments:
   1. Borei pri ha'gafen (if on wine or grape juice—preferred option), OR
      Ha'motzi (on two challot if you have no wine or grape juice, since no chamar medina is allowed for Jewish festival evening kiddush; see Jewish Festivals: Kiddush: Challot for Kiddush) AND
   2. Asher bachar banu mi kol am.... mekadeish Yisrael v'hazmanim, AND
   3. She'hecheyanu on all Jewish festival nights, except the last two nights of Passover.  So say she'hecheyanu on:
      • Both nights of Rosh Hashana (in or outside of Eretz Yisrael),
      • First two nights of Passover (1 night in Eretz Yisrael),
      • Both nights of Shavuot (1 night in Eretz Yisrael),
      • First two nights of Sukkot (1 night in Eretz Yisrael), and
      • Nights of Shmini Atzeret and Simchat Torah (same day in Eretz Yisrael).
      Note There is never any requirement on an indvidual to drink kiddush wine (except at the Passover seder), but the kiddush wine must be drunk by one or more persons.
      Note A woman who had said she'hecheyanu when she lit the Jewish festival candles does NOT say she'hecheyanu again if she makes kiddush for herself, even when making kiddush at the Passover seder.
      Note There is no need to eat a new fruit after saying she'hecheyanu on the second night of  Shavuot, Passover, or Sukkot. This is not comparable to Rosh Hashana, since the second festival night was instituted due to uncertainty of the actual date of the holiday, while Rosh Hashana is considered to be one single, long day.
2. Establish a halachic “meal” (kovei'a se'uda).
   For how to establish a halachic meal, see Introduction to Jewish Festival “Eating a Meal” Requirements.

Three Shabbat Meals
We are required to eat three Shabbat meals, as a rabbinic (d'rabanan) enactment to enjoy Shabbat (oneg Shabbat). The first Shabbat meal must be at night and the remaining two must be during the day (the third meal must be eaten after halachic midday). Friday night dinner and the first meal on Saturday are preceded by kiddush. For the first two Shabbat meals, say ha'motzi over two complete loaves of bread, each of which is at least 1.3 fl. oz. in volume. For the third meal, the ideal is to use two complete loaves of bread, but the requirement of eating the third meal can also be fulfilled by eating any food other than salt or water.

Source of Saying Shabbat Kiddush

• Saying kiddush on Shabbat night is a commandment from the Torah (d'oraita).
• Saying kiddush on Saturday morning is a rabbinical (d'rabanan) enactment.

Note If you did not say Friday night kiddush, you must say that version of kiddush on Shabbat morning and it is then a requirement from the Torah (d'oraita). Do not begin with va'yechulu; instead, begin with borei pri ha'gafen and say the second blessing of kiddush.

Source of Kiddush Location
Saying kiddush at the place where you will eat your meal is a rabbinical (d'rabanan) enactment.

Shabbat Kiddush-Meal Quantities: Evening

• For evening kiddush, a minimum of 4 fl. oz. (119 ml) of wine must be blessed on and at least half must be drunk.
• For the evening meal, as on Shabbat lunch and all required Jewish festival meals, a minimum of 1.9 fl. oz. of bread must be eaten within four minutes.

Shabbat Kiddush-Meal Quantities: First Meal on Saturday
Shabbat day first meal has two separate eating requirements.  They may be combined (say/hear kiddush and start the main meal right away) but are often done separately (say/hear kiddush and then eat some mezonot; the main meal is eaten later in the day).
Note Since eating and drinking requirements on all morning kiddushes (both Shabbat and Jewish festivals) are d'rabanan, the required beverage amount for morning kiddush is only 3.3 fl. oz. (99 ml) instead of the d'oraita 4 fl. oz. (119 ml), which is required for kiddushes for Shabbat evening.
1) Morning kiddush requires a halachically legal “meal” with these elements:
      a) Blessing on a minimum of 3.3 fl. oz. (99 ml) of wine (or other beverage),
      b) Someone's drinking at least 2 fl. oz. of the beverage, followed by
      c) Eating at least 1.3 fl. oz. (39 ml, or 1/6 cup) of some type of mezonot (or bread) within four minutes.
Note If you drink at least 3.3 fl. oz. (99 ml) of wine within 30 seconds, you do not need to eat mezonot.
Note You do not need to drink the wine or other kiddush beverage to fulfill “establishing a meal.” You may hear kiddush and then simply eat the required amount of bread or mezonot. This applies to Shabbat or Jewish festivals, evening or morning.
The kiddush “meal” does not have to satiate.
Note If you have not fulfilled the requirements for kiddush, you may not eat other foods, such as fruit or fish at a kiddush.

2) The real meal (kovei'a se'uda) of Shabbat lunch requires eating at least 1.9 fl. oz. (56 ml) of bread (or matza during Passover!) within four minutes. It should include enough food to satiate.
Note You can simultaneously fulfill the requirement to “establish a meal” and to “eat a meal” by eating one (the same) piece of bread.
For details on fulfilling the first two meals' requirements, see Shabbat: Kiddush.

Shabbat: Eating a Meal Requirement: Third Meal
For details on fulfilling the third meal's requirements, see Shabbat: Third Meal (Se'uda Shlishit).