questions about numbers

learn more… | top users | synonyms

8
votes
4answers
844 views

How many stars did Rashi think there were?

According to the Chabad translation, Rashi on Deut. 1:10 implies that there are more than 600,000 stars: The Lord, your God, has multiplied you, and behold, you are today as the stars of the ...
7
votes
29answers
458 views

Shiv'im - mi yodeya?

Who knows seventy? Please cite/link your sources, if possible. At some point in the next few days, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
7
votes
6answers
685 views

Bedikas Chometz - 10 pieces of bread

In Shulchan Aruch Orach Chaim 432:2 the Rama says that the Minhag is to place bread in such a place that the searcher can find it. Both the Be'er Hataiv and the Mishna Berura say that according to the ...
7
votes
6answers
221 views

Number of Candles at Lighting

How many candles should one light on Erev Shabbos and Yom Tov? And why that number?
7
votes
4answers
132 views

Arba'a Ve'esrim Ushlosh Meyot - mi yodeya?

Who knows three hundred twenty-four? ?ארבעה ועשרים ושלוש מאות - מי יודע The traditional Passover song "Echad - mi yodeya" implies a possible presupposition that there is a Jewish significance to be ...
7
votes
1answer
189 views

Why is the hard limit for the size of a beis din 71 members?

When a beis din is undecided (e.g. when adjudicating monetary cases or Dinei Nefashos), judges can be added until the beis din reaches a maximum size of 71. Why is a beis din's maximum size 71? Why ...
7
votes
2answers
144 views

Does being Yotzei a Bracha count for 100?

There are many brachos where by listening to the bracha one can be yotzei his obligation for that bracha. If someone does do so, does that bracha count towards the quota of 100 brochos a day?
7
votes
3answers
176 views

Why 1 box for the tefillin shel yad and 4 boxes for the shel rosh?

Why does the tefillin shel yad (hand) have 1 box and the shel rosh (head) have 4 boxes? I know it's because of the physical "structure", i.e. - the yad has 1 parchment and the rosh has 4 separate ...
7
votes
3answers
475 views

Why do some pairs of Tzitzit have one hole on each corner and some have two?

There are Tzitzit that have one hole and some have two. What is the significance of the multiple holes? Whose custom is it to have one? Whose custom is it to have two?
7
votes
3answers
196 views

When does counting 100 Brochos per day start and end?

There's a Halacha/Mitzvah to say at-least 100 Brochos a day. My question is: what does the term "day" mean in this regard. Does a day start at night, and end the following night (as is the case in ...
7
votes
3answers
87 views

Echad Ushloshim Ushlosh Meyot - mi yodeya?

Who knows three hundred thirty one? אחד ושלושים ושלוש מאות - מי יודע?‏ The traditional Passover song "Echad - mi yodeya" implies a possible presupposition that there is a Jewish significance to ...
7
votes
1answer
542 views

How Many Stones to Place on a Grave?

When visiting a gravesite, my Jewish relatives always place small stones on the gravestone as a showing of respect for the dead. They typically place one stone on the gravestone, but I find myself ...
7
votes
2answers
101 views

How large is a typical contemporary hagada commentary?

In a contemporary published hagada with commentary, how many total words does the commentary typically comprise? (For comparison, "Hagada - Mi Yodeya?", in its current form, weighs in at about 14,000 ...
7
votes
3answers
110 views

Why were there 8 kings of Edom?

Is there any symbolism or other explanation as to why there were specifically eight kings of Edom who ruled before any king in Yisrael did, like it says in Bereshis 36 (31-39)?
7
votes
2answers
138 views

42 camps and 42 non-refuge Levite cities (Masei)

What is the significance of the numerical correspondence between the 42 camps or waypoints mentioned in the recounting of the forty years of wandering (Bamidbar 33) and the fact that 42 of the 48 ...
7
votes
1answer
137 views

Why are we so concerned about 1/2 of 1% (Golden Calf episode)

We just read (in Parshat Ki Tisa) that the Levites punished the 3,000 men who took part in the golden calf episode. But 3,000 is only 1/2 of 1% of the 600,000 Israelite men who left Egypt. Why is the ...
7
votes
2answers
180 views

Why celebrate Lag Ba'Omer on the 33rd according to the MaHaRIL?

There are several different opinions about when the students of Rabbi Akiva died, and which days we mourn for them. Sefer HaToda'ah quotes the Maharil, who says that the students of Rabbi Akiva died ...
7
votes
1answer
414 views

Counting Sheloshim for a chol hamoed death

How long is the shloshim observed for a death which occurs during chol hamoed Pesach? Does one observe a full thirty days started from the funeral or is it shortened because of the chag?
7
votes
3answers
206 views

Why were the Jews punished for 40 years if the spies were the ones who were there for 40 days?

Rashi (Bemidbar 13:25) implies that the Jews were in the Sinai Desert for 40 years in response to the spies being in the Land of Israel for 40 days. While the spies had 40 days worth of planning to ...
7
votes
1answer
229 views

Criteria for the list of Nashim Kesheiros (Medrash Breishis Rabsi)

The Medrash Breishis Rabsi Parshas Chaya Sara 23:1 lists 22* Nashim Kesheiros. כ"ב נשים כשרות היו בעולם ואלו הן שרה, רבקה, רחל, לאה, סרח בת אשר, יוכבד, מרים, בתיה בת פרעה, דבורה, צללפונית אשת מנוח, ...
6
votes
37answers
625 views

Arba'a - mi yodeya?

Who knows four? Please cite/link your sources, if possible. After Shabbat, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
6
votes
12answers
172 views

Shnayim Ve'arba'im - mi yodeya?

Who knows forty-two? Please cite/link your sources, if possible. At some point in the next few days, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
6
votes
5answers
264 views

Seven Brochos at a Wedding

I just read What do I need to make a Jewish Wedding. Is there a requirement for seven different people to say each of the seven Brochos, or can one say all of them?
6
votes
5answers
102 views

Tish'a Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-nine? ?תשעה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 289....
6
votes
3answers
101 views

Tish'a Ve'esrim Ushlosh Meyot - mi yodeya?

Who knows three hundred twenty nine? ?תשעה ועשרים ושלוש מאות - מי יודע The traditional Passover song "Echad - mi yodeya" implies a possible presupposition that there is a Jewish significance to be ...
6
votes
2answers
85 views

Asara Ushlosh Meyot - mi yodeya?

Who knows three hundred ten? ?עשרה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 310. There is lazy ...
6
votes
2answers
107 views

Shisha Ushlosh Meyot - mi yodeya?

Who knows three hundred and six? ?שישה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 306. And that which ...
6
votes
3answers
123 views

Shnayim Umeya Va-elef - mi yodeya?

Who knows eleven hundred two? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting answers. Accept the best answer. Go on to ...
6
votes
3answers
408 views

Why is Shmoneh Esreh referred to as 18 blessings when there are actually 19?

Originally Shmoneh Esreh only had 18 blessings, thus the name "Shemoneh Esreh." However, subsequently a 19th blessing was added of Velamalshinim regarding the heretics. If there are 19 blessings now, ...
6
votes
1answer
223 views

What are these marks with the numbers designating the Jewish years on this calendar?

I can see that the Hebrew is Elul 775 to Tishrei 776. What are those marks prior to the Hay and the Vav?
6
votes
1answer
122 views

Are you yotzei yedei chovah if you forgot to bow during shemoneh esrei?

The sages instituted that we bow 5 times during the shemoneh esrei (four times throughout and once at the end). If one forgot to bow during one of these 5 times, has he still fulfilled his obligation?...
6
votes
2answers
390 views

How many T'fachim make up an Ama?

Is it possible to convert between Torah measurements? Specifically, T'fachim & Amot, (cubits) so I can figure out the size of the luchot (tablets) within the Aron Hakodesh (ark). (The Luchot are ...
6
votes
4answers
456 views

How is it that Abraham didn't ask that four save a city, yet four did so?

Rashi (Vayera 18:24 and passim) explains that S'dom was the most important of five cities in its neighborhood, and God was going to destroy all of them. First, though, He told Avraham of His intent to ...
6
votes
4answers
279 views

“גוט שבת, גוט שבת”

My father, passing someone on the street on שבת, says "גוט שבת, גוט שבת" (Yiddish, "good sabbath, good sabbath"): that is, he repeats himself. I thought it might be his own idio-custom — until I ...
6
votes
1answer
74 views

Why no number of p'sukim for P'kude?

Many copies of Chumash list, after each parasha (weekly reading), the number of verses in that parasha. By and large, they omit it for parashas P'kude; why? (And if the answer is that they copy the ...
6
votes
2answers
71 views

Customs for waving arba minim three times in each direction

I get why we shake the arba minim in all directions, but why do some have the custom of shaking them three times in each direction?
6
votes
2answers
152 views

Number of Yamim Tovim that fall on Shabbos

In a given year, a certain number of Yamim Tovim days fall on Shabbos, and a certain number not. What are the minimum and maximum count of Yamim Tovim days that can fall on Shabbos in a single year (...
6
votes
3answers
66 views

Arba'a Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-four? ?ארבעה ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 294. This is ...
6
votes
2answers
56 views

Shnayim Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-two? ?שנים ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 292. You may ...
6
votes
3answers
377 views

What is the halachic status of adult conjoined twins?

It is rare but possible for conjoined twins to remain alive and healthy into adulthood, such as is the case with Abby and Brittany Hensel. They have distinct sets of heads, hearts, and lungs. They ...
6
votes
1answer
214 views

How to fix incorrect omer count

Suppose someone accidentally counts the wrong day of the omer after making a bracha, and then realizes later that night what he had done. How should he rectify this? Should he count the correct day ...
6
votes
2answers
358 views

Why is one permutation of the name of God backwards?

If you spell out each letter that makes up the name of God, then add up the gematria (numerical value) of each letter of each fully spelled out letter you get various values. The value depends on how ...
6
votes
1answer
78 views

Why 2 candles for yom tov

For Shabos, there is a custom to light 2 candles: one for shamor and one for zachor. Shulchan aruch harav 263.1: ‏…אחד כנגד זכור ואחד כנגד שמור…‏ I understand that on ...
6
votes
1answer
130 views

Source for # times chai?

I often see donation requests with amounts in multiples of $18. I would like to know the source for giving charity of the numeric value of the Hebrew word chai (18) and its multiples.
6
votes
1answer
168 views

Saying “HaMakom yenachem…” multiple times

Does one say "HaMakom yenachem..." each time one visits/leaves a shiva house or only once during the shiva period? I recall someone telling me one only says it once, but I cannot find any source for ...
6
votes
1answer
314 views

What is the Significance of Ten Generations in the Torah when it comes to Genealogy

No Ammonite or Moabite shall be admitted into the congregation of the Lord; none of their descendants, even in the tenth generation-Deuteronomy 23:4 What is the significance of the ten-generation ...
6
votes
0answers
59 views

Division of Al Cheit

Al Cheit has a chorus line ועל כולם, אלוה סליחות, סלח לנו, מחל לנו, כפר לנו after the first 20 Al Cheits, then after the next 12, then after the next 12. Who made this division? Why was it not divided ...
5
votes
15answers
137 views

Arba'a Ve'esrim - mi yodeya?

Who knows twenty-four? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
5
votes
13answers
178 views

Chamisha Asar - mi yodeya?

Who knows fifteen? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
5
votes
12answers
185 views

Shelosha Asar - mi yodeya?

Who knows thirteen? Please cite/link your sources, if possible. After about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number. (What, you ...