An ampersand is a symbol that represents the word and.
An asterisk is a symbol a little like a star that is used to mark a footnote, draw attention to something, or mark when something might be ambiguous.
Qis forQuestion mark
A question mark is a punctuation mark used in writing to indicate a question. When you're speaking, you ask a question by raising your tone of voice at the end of the sentence. Since writing has no tone, a question mark is used instead.