Do I need to create a new InstaPoll for each question asked?

No. You can use the same Instapoll for consecutive questions. This can be done in two ways:

1. If you leave the “Students may change their answer” box checked, the students can change their answers for the new question and the poll results will automatically update.
2. If you unchecked the “Students may change their answer” button, click the ‘Reset’ button in order to clear the answers to the previous question. This will start the poll with a blank slate.