No, "hide-and-seek" is not capitalized unless it is at the beginning of a sentence or part of a title. It is a common noun referring to the children's game. Therefore, in most contexts, you would write it in lowercase.
If in the title, yes capitalize sharks. Example:U.S.S. Indianapolis Shark TerrorHowever, in the essay, shark would be a common noun.
Standard style and usage says that you do. This has not always been the case, however. There are examples from the King James Bible where the interrogative is used in mid-sentence with no upper-case following it. If you want your writing to appear professional and competent, use the interrogative to end the sentence, and start a new one with an upper-case letter.
Yes you do, because it is a name of a specific place.
Your question is inconsequential, considering Bansky himself (or herself) created the intro.
Neil Armstrong is a famous astronaut who landed on the moon.
no, but you do capitalize mum
No, you do not capitalize the word drama.
You capitalize the first A but not the last a.
Capitalize the first word in a sentence. Capitalize proper nouns, such as the names of people and places. Capitalize the pronoun "I." Capitalize the first word of a quote. Capitalize days of the week, months, and holidays. Capitalize the titles of books, movies, and songs. Capitalize the first, last, and important words in titles.
Capitalize challah bread
do you capitalize roaring twenties
You capitalize Huntington
do you capitalize the word protestant
You would not capitalize it. cotton gin
yes, you do capitalize The Black Hills.
Yes you do capitalize Relief Money
Yes, you always capitalize "Cuban."