questions about numbers

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2
votes
1answer
218 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 ...
2
votes
1answer
68 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
2answers
52 views

Tish'a Vetish'im Umatayim - mi yodeya?

Who knows two hundred ninety-nine? ?תשעה ותשעים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 299. Once ...
2
votes
3answers
73 views

Chamisha Vachamishim Umatayim - mi yodeya?

Who knows two hundred fifty-five? Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will: Upvote all interesting and relevant answers. Accept the ...
2
votes
1answer
29 views

How did the Sanhedrin count votes

The Great Sanhedrin was too large (71 judges) to simply know how everyone voted. There must gave been a way to count votes, in a legal fashion. (Just counting people is prohibited.) So, by what ...
2
votes
1answer
134 views

Washing before Davening - 1 or 3 times?

One must wash before each tefilah (S"A 92:4, 233:2). Do you need to wash 3 times before davening, or is 1 time sufficient?
2
votes
1answer
59 views

Parameters for brov am?

What are they parameters of brov am hadras melech? is it a requirement or a hiddur? does it apply equally to men, women and children? why does it not seem to apply to zimun (preferable to split into ...
2
votes
1answer
26 views

Shemona Vachamishim Umatayim - mi yodeya?

Who knows two hundred fifty-eight? Please cite/link your sources, if possible. At some point between twenty-four hours and a few days from now, I will: Vote up all interesting and relevant answers. ...
2
votes
1answer
26 views

Why was King David Punished for Sending Others to Conduct a Census?

If there is no agency for sin, why was King David punished for sending people out to conduct a (forbidden) census? (Explanation of agency: The Talmud says "ein sheliach l'dvar averia," which means, ...
2
votes
2answers
45 views

Arba'a Veshiv'im Umatayim - mi yodeya?

Who knows two hundred seventy-four? In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 274. Check out mi-yodeya-series for the ...
2
votes
2answers
36 views

Chamisha Vachamishim Umeya - mi yodeya?

Who knows one hundred fifty-five? 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
3answers
27 views

Shnayim Vachamishim Umeya - mi yodeya?

Who knows one hundred fifty-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 ...
2
votes
0answers
25 views

Ages in Genesis 5 [duplicate]

Are the life spans in Genesis 5 meant to be taken literally? Wasn't the life span of ancient people drastically shorter back then? I have read that the numbers are spiritual numbers that are used to ...
2
votes
2answers
48 views

Why does Yaakov mention the two camps to Hashem?

When Yaakov was praying to Hashem in chapter 32, he points out in verse 11 how much Hashem has done for him by saying כי במקלי עברתי את הירדן הזה ועתה הייתי לשני מחנות, 'for with my stick I crossed ...
2
votes
0answers
44 views

Kavanah while washing hands

When washing the hands, either before bread, or in the morning, must you have the correct kavanah (intent)? For example, if i pick up the cup in the morning thinking i'll do 2-2 (like washing for ...
2
votes
0answers
57 views

Is there a source for giving charity in round numbers plus one?

This question asks about the (mostly?) Ashkenazic practice of giving charity in multiples of 18. Another custom I have observed is to give charity in round numbers + 1 e.g. $51, $101, $201 etc. This ...
2
votes
0answers
74 views

Is a triple shvus allowed?

Is there a concept of shvus dishvus with an added shvus making it a rabbinic prohibition 3 times removed. For example if it's yom tov sheini, and the action is rabbinic such as Nolad (turning on a ...
2
votes
0answers
55 views

How many disputed and undisputed Torah Mitzvot are there?

If you combine all the known lists of the "613 Mitzvot" (Rambam, Ramban, Semag, etc.), how many total mitzvot are listed by at least one person as a Mitzvah Deoreitya? I am curious to compare this to ...
2
votes
1answer
39 views

Shnayim mikrah v'echad targum - why twice? [duplicate]

There is a mitzvah to read the parsha of the week in preparation for every Shabbat - the Hebrew of each verse twice, and a translation or commentary of that verse once. I understand that the ...
2
votes
0answers
144 views

Relations twice as segulah for boy — What about zugos?

I had asked what is the source for the segulah of having relations twice in order to have a boy. I first asked this in order to obtain a source to better ask this question. The Gemorah says in Niddah ...
2
votes
0answers
169 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
1answer
207 views

How does gematria deal with zero?

I have some questions regarding gematria and zero: which characters of alphabet means zero according to gematric rules? since which time did Jews consider zero as a character equivalent to other ...
2
votes
2answers
178 views

Correspondence between 365 negative commandments and days of the year?

There are 365 negative commandments which correspond to the days of the (solar) year (see Makos 23b; Tanchuma Ki Seitzeh 2). Apparently the prohibition of Gid HaNasheh (sciatic nerve) corresponds to ...
1
vote
13answers
98 views

Shnayim Ushloshim - mi yodeya?

Who knows thirty-two? 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.
1
vote
6answers
62 views

Shnayim Umeya - mi yodeya?

Who knows one 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 ...
1
vote
4answers
68 views

Shiv'a Ve'esrim Umeya - mi yodeya?

Who knows one hundred twenty-seven? 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 ...
1
vote
7answers
50 views

Sheloshim Umeya - mi yodeya?

Who knows one hundred thirty? 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 ...
1
vote
5answers
81 views

Echad Umeya - mi yodeya?

Who knows one hundred one? 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 ...
1
vote
4answers
63 views

Shiv'a Ushloshim Umeya - mi yodeya?

Who knows one hundred thirty-seven? 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 ...
1
vote
6answers
81 views

Shemona Ve'esrim Umatayim - mi yodeya?

Who knows two hundred twenty-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 ...
1
vote
6answers
53 views

Shishim Umeya - mi yodeya?

Who knows one hundred sixty? 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 ...
1
vote
3answers
41 views

Shemona Vetishim - mi yodeya?

Who knows ninety-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 on to the ...
1
vote
5answers
33 views

Shemonim - mi yodeya?

Who knows eighty? 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.
1
vote
6answers
74 views

Shelosha Ve'esrim Umeya - mi yodeya?

Who knows one hundred twenty-three? 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 ...
1
vote
5answers
62 views

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

Who knows forty-four? 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.
1
vote
3answers
52 views

Shelosha Ushmonim - mi yodeya?

Who knows eighty-three? 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.
1
vote
4answers
40 views

Tish'a Veshishim - mi yodeya?

Who knows sixty-nine? 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.
1
vote
3answers
65 views

Chamisha Ushloshim - mi yodeya?

Who knows thirty-five? 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.
1
vote
6answers
114 views

Shiv'a Ve'esrim - mi yodeya?

Who knows twenty-seven? 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.
1
vote
3answers
62 views

Shnayim Ushmonim Umatayim - mi yodeya?

Who knows two hundred eighty-two? ?שנים ושמונים ומאתים - מי יודע In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 282. I think ...
1
vote
4answers
35 views

Shiv'a Veshiv'im - mi yodeya?

Who knows seventy-seven? 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.
1
vote
3answers
46 views

Shnayim Vetish'im Umeya - mi yodeya?

Who knows one hundred ninety-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 ...
1
vote
4answers
39 views

Arba'a Veshiv'im - mi yodeya?

Who knows seventy-four? 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.
1
vote
5answers
59 views

Echad Veshiv'im - mi yodeya?

Way to go on 70, yodeyans! But, the mi.yodeya series doesn't rest on its laurels... Who knows seventy one? Please cite/link your sources, if possible. At some point in the next few days, I will: ...
1
vote
1answer
607 views

How many prophets were there and who were they?

How many prophets are recognized by Judaism, and what were their names? I found a website that claims the number of prophets is 124000. Is this true? Are all of their speeches or writings ...
1
vote
2answers
46 views

Shelosha Ve'arba'im Umatayim - mi yodeya?

Who knows two hundred forty-three? 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 ...
1
vote
3answers
74 views

Shiv'a Umeya - mi yodeya?

Who knows one hundred seven? 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 ...
1
vote
4answers
59 views

Arba'a Veshishim - mi yodeya?

Who knows sixty-four? 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.
1
vote
2answers
160 views

Shelosha Veshishim - mi yodeya?

Who knows sixty-three? 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.
1
vote
5answers
63 views

Shiv'a Veshishim Umatayim - mi yodeya?

Who knows two hundred sixty-seven? Please cite/link your sources, if possible. At some point between twenty-four hours and a few days from now, I will: Vote up all interesting, relevant answers. ...