questions about numbers

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2
votes
2answers
597 views

How many Kosher animals were in Noach's Ark?

How many animals total of each Kosher species were in the teivah during the flood?
15
votes
8answers
604 views

Why is “Shalom Aleichem” always plural?

Why do we say Shalom Alaichem to one person if Alaichem is plural? Is it saying you and all of the Jews? Is that why it's plural?
13
votes
5answers
247 views

What is the nature of the numeral “ashtei-asar” (11)?

What is the nature of the numeral ashtei-asar (meaning 11) as in וּבַיּוֹם הַשְּׁלִישִׁי פָּרִים עַשְׁתֵּי-עָשָׂר (Pinchas 29:20): What is the basic word? Is this using semichus, as in ashtaim of ...
11
votes
5answers
811 views

Why do some people wrap their Tefilin around their arms 8 times?

I have seen people who wrap the Tefilin 7 times around their arm and some that wrap it 8 times around their arm. Why do the people who wrap it 8 times do so?
10
votes
3answers
208 views

How did Avrohom learn that nine doesn't work?

The Midrash says (Bereshis Rabbah 49:13 quoted in Rashi Genesis 18:32) that Abraham stopped asking HaShem to save Sodom in the merit of less than 10 people because Noah and his family who were 8 ...
8
votes
2answers
115 views

Why not count 50 days of the omer instead of 49?

The verse in Vayikra (23:16) says: עד ממחרת השבת השביעית תספרו חמישים יום even unto the morrow after the seventh week shall ye number fifty days (OJPS, emphasis added) In my experience the ...
7
votes
4answers
122 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
3answers
320 views

Saying 100 Berachoth in a day

What is the source for the idea that one should say 100 Berachoth in a day, and how serious of an obligation is this? Is it mandatory, is it laudatory, or is it merely a nice idea?
7
votes
3answers
371 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?
6
votes
2answers
84 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
289 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
6answers
569 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 ...
6
votes
3answers
119 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 ...
5
votes
1answer
52 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 ...
5
votes
0answers
116 views

How many approaches to Torah are there?

Our sages tell us that there are שבעים פנים לתורה (Bamidbar Rabbah). Does this mean that every word, or verse, or some unit, has 70 interpretations, and there are theoretically billions of ...
5
votes
1answer
240 views

Parshas Tzav - 96 Pesukim?

At the end of each Parsha many Chumashim have the number of Pesukim that are in that Parsha. By Parshas Tzav they all say 96 which is the Gematria of Tzav צו. However if counted there are 97 Pesukim. ...
5
votes
1answer
483 views

Tzitzit tying: the real way

1)There are two authentic ways to tie the Sisit (Tzitzis) that have sources. Maran writes to make 7-9-11-13. First question: why does he write this is he then says Gimtarya Hashem is One, when in fact ...
5
votes
12answers
144 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.
5
votes
13answers
167 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.
4
votes
0answers
49 views

Yakkov living in Egypt 17 years - connection to 210 years of servitude

Parshas Vayechi starts off that Yaakov lived in Egypt for 17 years. I was thinking that 17 years x 12 months = 204 months. Usually in 17 years there are 6 leap years which would increase the total ...
4
votes
1answer
125 views

Were the there only 55 שמיטה years between the Exodus and the First Temple?

The sefer Sifsei Cohen (not to be confused with the commentary on the Shulchan Aruch) on VaYetzeh, Beraishis 28:13 writes the following: ואמר הארץ אשר אתה שוכב עליה לך אתננה...עוד אתננה אתן נה פי׳ ...
4
votes
3answers
83 views

Shemona Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-eight? ?שמונה ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 298. I wash ...
4
votes
9answers
201 views

Sheloshim - mi yodeya?

Who knows thirty? 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.
3
votes
1answer
106 views

Did Moshe know beforehand that there would be 10 plagues?

I was wondering whether, before the first time Moshe went to Pharaoh, he knew that there would be 10 plagues, and what they would be.
3
votes
5answers
90 views

Esrim Ushlosh Meyot - mi yodeya?

Who knows three hundred twenty? ?עשרים ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 320. Let the lips of ...
3
votes
2answers
121 views

What is the problem with writing שט as a number?

In Hebrew, numbers are represented by letters. When these letters spell out something unpleasant or undesirable, they are moved around. An example is שד which means “demon” becomes דש in the Mishna ...
3
votes
2answers
401 views

Is the number triple-6 good, bad, or neutral in Judaism?

Is the number triple-6 good, bad, or neutral in Judaism? How about numeric variations and combinations such as 216? I know that 18 means 'life' due to Gematria calculations.
3
votes
0answers
106 views

One Challah or Two?

If two challahs are braided and baked together on one pan, and before they are completely baked, they have stuck together, do I have one challah or two? I.e. can I separate them and still have two ...
3
votes
4answers
80 views

Shiv'a Ushlosh Meyot - mi yodeya?

Who knows three hundred and seven? ?שבעה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 307. Check out ...
3
votes
3answers
66 views

Chamisha Ushlosh Meyot - mi yodeya?

Who knows three hundred and five? ?חמישה ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 305. Don't be led ...
3
votes
0answers
176 views

What do Chazal mean when they say that when Moshiach comes there will be another note added to the octave making a total of 8 notes?

Related: What were Chazal referring to when they said there were 7 notes in a musical octave? There is a well known Medrash (anyone help with the source?) [I think on the Posuk 'Lamnatzeich Al ...
3
votes
5answers
64 views

Shiv'a Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-seven? ?שבעה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 287. There ...
3
votes
4answers
75 views

Arba'a Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-four? ?ארבעה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 284. I don't ...
3
votes
15answers
73 views

Matayim - mi yodeya?

Who knows two hundred? 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 the ...
3
votes
2answers
35 views

Chamisha Veshiv'im - mi yodeya?

Who knows seventy-five? 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.
3
votes
10answers
162 views

Shishim - mi yodeya?

Who knows sixty? 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.
3
votes
10answers
140 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 ...
3
votes
13answers
140 views

Shemona - mi yodeya?

Who knows eight? Please cite/link your sources, if possible. In about one business day, I will: Upvote all interesting answers. Accept the best answer. Go on to the next number.
2
votes
1answer
33 views

Why did the people have to respond twice “It is sanctified” when Sanhedrin declared Rosh Hodesh?

Ramba"m (Maimonedes) Hilchot Kid. Hachodesh 2:8 says: Afterwards - i.e., after [the witnesses'] testimony is substantiated - the head of the court declares, "It has been sanctified." And all the ...
2
votes
1answer
107 views

420 Noachide Commandments?

I know there are seven specific commandments to noachides but recently I was talking to a Rabbi who told me actually noachides have 420 commandments and the Jewish nation has 613. Can anyone point me ...
2
votes
1answer
70 views

Why was Ephraim's count not affected by leaving early?

According to the medrash pirkei deRebbi Eliezer (48) 200,000 Ephraimites left Egypt many years before Moshe took the Jews out and were killed. There are other midrashim and a gemarah which quote ...
2
votes
0answers
175 views

What were Chazal referring to when they said there were 7 notes in a musical octave?

Related: What do Chazal mean when they say that when Moshiach comes there will be another note added to the octave making a total of 8 notes? There is a well known Medrash (anyone help with the ...
2
votes
3answers
86 views

Echad ushlosh meyot - mi yodeya?

Who knows three hundred and one? ?אחד ושלוש מאות - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 301. Anyone who posts ...
2
votes
1answer
49 views

Shiv'a Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-seven? ?שבעה ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 297. I'm ...
2
votes
3answers
63 views

Chamisha Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-five? ?חמישה ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 285. The best ...
2
votes
4answers
71 views

Shnayim Veshiv'im Umatayim - mi yodeya?

Who knows two hundred seventy-two? Please cite/link your sources, if possible. At some undetermined point in the future, at least a day from now, I will: Vote up all interesting, relevant answers. ...
2
votes
5answers
161 views

Shisha Ve'arba'im Umatayim - mi yodeya?

Who knows two hundred forty-six? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all answers I consider relevant and interesting. ...
2
votes
4answers
65 views

Arba'a Ve'arba'im Umatayim - mi yodeya?

Who knows two hundred forty-four? 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 ...
2
votes
5answers
71 views

Asara Umatayim - mi yodeya?

Who knows two hundred ten? 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 ...
2
votes
6answers
83 views

Shemona Veshishim Umeya - mi yodeya?

Who knows one hundred sixty-eight? 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 ...