There are no surveys on this site, but there are several survey sites out there. I currently do about 8 of them very part time and earn roughly $100 per month. Again, this is very part time, usually in the evenings after I cook dinner for the kids. I put on the TV for background noise and set a goal for each site (earn a dollar per site, answer 2 surveys per site, etc).
If you have more time to spend, then you can definitely make more. If you want to send me a message, I'll give you the sites that I've been doing. Some of them have the option to pay in cash either through PayPal, direct deposit or check. Some of them you can get gift cards so even then you can get a Walmart gift card to buy groceries or other necessities.
Please send me info! Thank you!