Quote - or quotation.
The term you're looking for is "quintuple." In general contexts, to repeat something multiple times, you can also use "quintet" for five instances or "quadruple" for four. However, if you're looking for a more general term that starts with "q," "quintuple" is the most fitting for five repetitions.
A known drink starting with a q is the Queef.
A clothing article starting with Q is a quilted jacket.
Crimes starting with q
Quit horsing around. It starts with Q.
In a list of 100 famous Scottish people, none had a surname starting with Q.
Suzi Quatro is a singer. Her name begins with Q.
There are no bones in the human skeleton that begin with Q.
According to Wikipedia, none start with a q
Quality Inspector is a job. It begins with the letter Q.
quartz
question