Surveys take 25-45 minutes even when described as 5-10 minutes and tend to disqualify you at the very end so thet don't have to pay you the few pence. Wouldn't bother unless you don't mind being messed around a lot.
Samplicious waste your time till the last question then you dont qualify. I just filled in a survey for 20 minutes then at the very last question where they asked me to put in my zip code it said i didn't qualify. Absolute con!!!