Paid survey is one of the ways money can be made online nowadays. There are many websites who do hire people to review or to sample their opinions about their products or happening. These sites are called survey websites.
There is no limit to what one can make on these sites especially if one stays in the advanced countries where there is tendency of seeing more of this opportunities.
The only problem is that most survey websites are not available for people in the third world which make their participation limited. Though there are some people that do use VPN just to access the website, I don't see this as a good option
Another issue with paid survey is that most time, the mode of payment is not that supportive in most third world countries. Most of them do use PayPal.
And also, it is not all the time that there is survey tasks to carry out on this websites. Most time, it may be intervals of days before there are tasks available.