Questionpro.com is a terrific online survey tool. The free trial version allows for full functionality. It lets you do skip logic and a whole lot more!
https://www.questionpro.com/
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I am a previous user of QuestionPro.com. However, right now I am using StellarSurvey.com, http://www.stellarsurvey.com. It has all the features of QuestionPro, if not more, and it is 4 times cheaper. Plus, you can create unlimited free account.