curl --request GET \
  --url https://{instance}-api.private.fin.ag/v3/{customerId}/BankingServices/GetMFAQuestions/{loginId}

{
  "Message": "SUCCESS",
  "Questions": [
    {
      "Question": "What shape do people like most?"
    },
    {
      "Question": "What is the best country on earth?"
    }
  ]
}