May one permit those invited to a circumcision feast to eat on the fast day (when Purim falls on Sunday and fast is on Thursday)?

When a circumcision falls on a public fast day, are Selichot and Vidui recited?

Ashrei and U'Va L'Tzion

When Rosh Chodesh falls on Shabbat and Sunday, what is recited after the regular haftarah?

Minchah and Maariv Timing

Is a mitzvah feast whose time is fixed on Erev Shabbat (e.g., brit milah, pidyon haben) permitted on Erev Shabbat?

Eating Before Shabbat

Should one recite a blessing when wearing tefillin on Chol HaMoed (according to those who permit/require wearing)?

When to Remove Tefillin

What actions are permitted as part of circumcision on Shabbat?

Assisting Childbirth on Shabbat

Is it permitted to throw seeds in a place where rain falls on Shabbat?

Agriculture on Shabbat