Changing One's Tzedakah Pledge - Rabbi yakov Zev Smith

1. Collected for a sick person who then passed away 2. Pushka for mossad that closed – what should be done with the money? 3. Not sure to which cause he pledged 4. Found tzedaka money but is unsure to which mossad it belongs to 5. Can’t locate collector to whom he pledged 6. Pledged to give for a mikveh – may the money be used for a ביהמ״ד of the same mossad? 7. Collected more than was needed – what should be done with the money? 8. Pledged to contribute to a building fund but wants to change to support a kollel 9. How can one change the original pledge? 10. Made pledge based on a false assumption 11. Finds it hard to fulfill his pledge 12. Pledged in a time of distress 12 Adar 5783