SurveyProf offers:

Web based survey tool.
Versatile question types.
Unlimited number of surveys.
Unlimited number of questions per survey.
Unlimited 'publish-time' for each survey.
100% free for students.

Your survey online in 4 steps:

Open a SurveyProf acccount and login.
Choose 'new survey'.
Enter all questions.
Choose 'publish'.

SurveyProf offers students a comprehensive and reliable 'all-in-one' set of online survey tools. The service is 100% free. No special software required. No evil small prints.