Polls in Spoks are created from the post editor, not from the forms page. To create one:
Start a new post.
Add a poll to the post.
Configure the poll's questions and settings.
Once the poll is created, it behaves like any other form or poll in Spoks — you can find it on the forms page, edit it from there, and view its submissions.
For details on configuring polls — including questions, appearance, poll-specific settings, and status — see Creating or editing a form or poll.