I have seen many Yeshivas (and some not-so-yeshivas [day schools, etc.]) doing a Hoiche Kedusha for Mincha. They had the Chazzan start the first three Brachos of Shemoneh Esrei aloud and say ...
Recently a friend of mine asked me the following question. He pledged $500- to a Yeshiva, yet before he paid the pledge the Yeshiva closed. Does he still have to pay his pledge to another Tzedaka or ...