Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
globalquiz.org - Difficult, multiplayer and multi-language trivia game.
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
HugeQuiz - test your knowledge with a variety of quizzes about everything.
LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
ActionQuiz - ActionQuiz is an online website that lets you select a quiz and play against computer opponents to see which one of you is smarter.