Polls are a common feature in user-community sites. Using Tiki you can create as many polls as you want and display from zero to n polls in the Tiki pages. You can also have a set of several active polls and display only one poll in a page. In that case, Tiki will rotate through the set of polls. Users with the right permission can see poll results, examine old polls and vote in any poll that is not closed.
In Tiki you can create/display and use as many polls as you want, to admin polls use the polls link from the admin section in the application menu.