A website transfers money to anyone who answers certain questions
Question

                What is your opinion on money acquired by a person who uses the internet where there are some sites which ask the user to answer various questions which help certain research that the website is doing, and this is in return for transferring some money to the user? In general, what is the shar’i ruling on quick earnings which are made with no effort?.
Praise be to Allah.The ruling on this action 
    depends on knowing what kind of questions the website is asking the user, so 
    that we may determine whether it is really benefitting from them and whether 
    this benefit comes under the heading of what is permissible or not? Or does 
    it benefit from the user entering or registering on the site, or will it 
    sell his information to a third party? All of these things happen on the 
    internet. 
If the subject matter of 
    the questions is permissible, and that will not result in helping the 
    website in any sinful activity, then there is nothing wrong with answering 
    the questions and taking the money that the website sends in return. 
The same applies to quick 
    earnings; they may be halaal or may be haraam, depending on the work the 
    earnings result from. 
For more information please 
    see the answer to question no. 98817 
    and 101806. 
And Allaah knows best.