Now I able to solve 4 of the problems. 2 remain. Trying to create network policy fails. I have labelled the ns and created netpol based on namespace selector.
No, I can’t… I’ve sent the yaml to the admins, but I never got his answer
If the question requires only ingress to be allowed from prod namespace and egress is allowed from pods to outside prod namespace then the wordings of the question is wrong. Scratch… scratch 
Is there a bounty 
Clicking on the sa arrow should throw some details. Seems this part of the diagram is not working properly, assumed from the arrow what is expected and voila got a congratulations … 
Challenge 3 also solved…
@Anudeep-Nalla it is simple. Just follow the document and read the yaml syntax example properly and replicate. Read question for dev and staging one of the questions is more descriptive.
