No. It's not necessary
Yes, the day of the week should be capitalized in writing.
Yes, "Graduation Day" should be capitalized because it is a proper noun referring to a specific event.
Yes, it should be capitalized because it is a proper noun
of course dummy!!!! You just capitalized it in your sentence too!!!
Yes, it is always capitalized because it is a propernou n. It should be --- Natio nal Day of Mour ni ng.
It should be--- Take Jackson to Happy Child Day Care.
No it doesn't require to be capitalized.
Yes, in the phrase "Election Day," the word "Day" should be capitalized because it is a proper noun referring to a specific day on the calendar.
Yes. It should be --- International Literacy Day.
Happiness should not be capitalized because it is not a proper nou n. However if it is used as a part of a proper nou n, the n it should be capitalized. Example: A Day of Happiness
New and Year should be capitalized but resolution should not.
Yes because it is proper.