Hey @dang007 thanks for opening again the contest! To know how long will last 20 steem is hard because the inflation here is to high so 1 thing can cost today $1 and tomorrow $3.
Actually the salary is less than $5 and it's imposible to buy something with it. The people that have stores want to sell things to the price of dolar. My maths are bad but I think one full day of 8 hours in a normal job would give you 6 cents or something like that. And even if I'm wrong it would still be cents... :(
But if I try to explain it I can say it will last at least 3 months of food, not buying nothing imported and using some administration powers.
If they buy clothes and gifts 20 steem would last 2 seconds, almost everything is imported and that means expensive.
If they have to pay the rent and several things like medicins or something maybe could last 1 month and half.
For me it would totally last like 2 months because I like to secure the food here in my house, so I will buy as much food I could (that last long of course haha) so It would be food for several months in case of something bad happens I can be in peace. I don't like my mom to be stressed about the food, sometimes is pretty hard to find and could be really expensive. sometimes I feel like living in a movie :(
Hope you can have an idea of how much would last 20 Steem for any of us, I'm really glad that you make this contest.. You can't imagine how much is that for a venezuelan. Steemit has changed so many lifes.
You can use this page that tells you how much it worths 20 Steem http://sbdtoday.herokuapp.com/