In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Q: When hoisting a flag that is to be displayed at half-mast, it should be raised to the finial of the pole for an instant, then lowered to half-mast. Likewise, when the flag is lowered at the end of the day, it should be hoisted to the finial for an instant, and then lowered.
A: 
how do you fly the flag at half mast