These surveys are not new, been on sites like facebook for years. I tried one myself many years back, didn't get anything so never did it again.
remember the motto "If it sounds to good to be true than it probably is"
No - I do not think "provide your contact info and answer these 20 questions for 200 Zen" (about a $2.00 value) is "too good to be true." It sounds reasonable - Provided that said zen is paid at 20 questions - and the "host" does not ask you 19 questions and "disqualify" you on THAT question. THAT is a "screw-job." A Reneg on the deal, if you will.
Again - Happening on one or two...MMMm'k.
Six in a row is a scam to phish me - I do not appreciate it and I will not reward it with my monetary business (As I have been- because up until now, it seemed to run fairly).