Once upon a time a couple of years ago, I signed up for a program from Google that would pay you for surveys that they would send out to you in the form of their Play Store credits. Sometimes, you could get around $0.10 or $.08 and rarely $1.00 per question depending on their systems. This often turned out to be a nice incentive to purchase apps on the Play Store for free since they were paying you in the form of credits. Since I signed up on 12/9/13, I have amassed a total of $80.89 in credits with the last survey taken on 03/31/17, Not every survey paid anything. Eventually, in March of this year, the surveys stopped.
With Google stopping the survey flow, it was not alarming to me, they have gone months sometimes 6 months or so between questions. As it is a free thing