only Catholic
Yes, because these words are propernou ns.
In normal use, you would not capitalize it. It there are specific instances when it is used as a title that it would be correct to capitalize it. The Catholic Missionary Church was located in Nairobi.
yes
Yes, if it's part of the name. "I attend the Hawthorne School." If the word "school" is not used as a proper noun, then don't capitalize it. "I will be late for school today."
No. It's not necessary. Capitalize it when it forms part ot the proper noun. Example: UST School of Medicine
No you don't capitalize university unless you have the name of the university, like University of Texas. It's the same way if you say school you only capitalize school if you add the name of the school afterwards, such as Woodland school.
2
Yes, becauseit is a proper n ou n. Example: Lourdes School of Makati Harvard University
You don't capitalize it except if it is the beginning of a sentence
Voodoo must definitely be capitalized since it is a religion. The same way you'd capitalize Roman Catholic, Jewish, or Protestant.
Most texts would capitalize Sunday and School but not the word teacher. Traditionally, Sunday School has been capitalized because it is regarded as a title of an institution.