The DEMO version only includes 4 pages:
http://spectacularpubquizzes.com
http://spectacularpubquizzes.com/how-do-quarantine-quizzes-work.html
http://spectacularpubquizzes.com/hold-bespoke-online-company-quiz.html
http://spectacularpubquizzes.com/harry-potter-online-quiz-wizardry.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
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