Answer the question and win a prize script?

Hey guys, i am searching for it but i cant find anything.

I need a script to embed on my website, the visitor just have to answer a question, if he is right he gets a code to activate a product on somewhere else.

Anyone can help me? Thanks.

I found this one but the support is kinda bad as you can see on the comments, i am afraid of buying and not getting the proper help from author;

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