diff --git a/lib/use_case/question/create.rb b/lib/use_case/question/create.rb
index 1904f6f6..7a5e0f56 100644
--- a/lib/use_case/question/create.rb
+++ b/lib/use_case/question/create.rb
@@ -32,8 +32,11 @@ module UseCase
         inbox = ::Inbox.create!(user: target_user, question: question, new: true)
 
         {
-          question: question,
-          inbox:    inbox
+          status:   201,
+          resource: question,
+          extra:    {
+            inbox:
+          }
         }
       end
 
diff --git a/lib/use_case/question/create_followers.rb b/lib/use_case/question/create_followers.rb
index 23695a74..cce75f76 100644
--- a/lib/use_case/question/create_followers.rb
+++ b/lib/use_case/question/create_followers.rb
@@ -23,7 +23,8 @@ module UseCase
         QuestionWorker.perform_async(source_user_id, question.id)
 
         {
-          question: question
+          status:   201,
+          resource: question
         }
       end
 
diff --git a/lib/use_case/question/destroy.rb b/lib/use_case/question/destroy.rb
index 5ffc8f54..e41043a1 100644
--- a/lib/use_case/question/destroy.rb
+++ b/lib/use_case/question/destroy.rb
@@ -15,6 +15,11 @@ module UseCase
         raise Errors::Forbidden unless current_user&.mod? || question.user == current_user
 
         question.destroy!
+
+        {
+          status:   204,
+          resource: nil,
+        }
       end
     end
   end
diff --git a/lib/use_case/user/ban.rb b/lib/use_case/user/ban.rb
index ad032ef8..12d0d8d1 100644
--- a/lib/use_case/user/ban.rb
+++ b/lib/use_case/user/ban.rb
@@ -1,13 +1,13 @@
 # frozen_string_literal: true
 
-require 'use_case/base'
+require "use_case/base"
 
 module UseCase
   module User
     class Ban < UseCase::Base
-      REASON_SPAM = 'Spam'
-      REASON_HARASSMENT = 'Harassment'
-      REASON_BAN_EVASION = 'Ban evasion'
+      REASON_SPAM = "Spam"
+      REASON_HARASSMENT = "Harassment"
+      REASON_BAN_EVASION = "Ban evasion"
 
       option :target_user_id, type: Types::Coercible::Integer
       option :expiry, types: Types::Nominal::DateTime.optional
@@ -20,18 +20,22 @@ module UseCase
         if reason == REASON_SPAM
           target_user.update!(
             profile_picture: nil,
-            profile_header: nil
+            profile_header:  nil
           )
           target_user.profile.update!(
             display_name: nil,
-            description: '',
-            location: '',
-            website: '',
+            description:  "",
+            location:     "",
+            website:      ""
           )
         end
 
         {
-          ban: ban
+          status:   201,
+          resource: ban,
+          extra:    {
+            target_user:
+          }
         }
       end
 
@@ -40,11 +44,7 @@ module UseCase
       end
 
       def source_user
-        if source_user_id
-          @source_user ||= ::User.find(source_user_id)
-        else
-          nil
-        end
+        @source_user ||= ::User.find(source_user_id) if source_user_id
       end
     end
   end
diff --git a/lib/use_case/user/unban.rb b/lib/use_case/user/unban.rb
index a1f191e1..55e15991 100644
--- a/lib/use_case/user/unban.rb
+++ b/lib/use_case/user/unban.rb
@@ -9,6 +9,14 @@ module UseCase
 
       def call
         target_user.unban
+
+        {
+          status:   204,
+          resource: nil,
+          extra:    {
+            target_user: target_user
+          }
+        }
       end
 
       def target_user
diff --git a/spec/lib/use_case/question/create_followers_spec.rb b/spec/lib/use_case/question/create_followers_spec.rb
index 0ee8475e..2b310427 100644
--- a/spec/lib/use_case/question/create_followers_spec.rb
+++ b/spec/lib/use_case/question/create_followers_spec.rb
@@ -19,11 +19,11 @@ describe UseCase::Question::CreateFollowers do
     let(:author_identifier) { nil }
 
     it "creates question" do
-      expect(subject[:question]).to be_persisted
+      expect(subject[:resource]).to be_persisted
     end
 
     it "enqueues a QuestionWorker job" do
-      expect(QuestionWorker).to have_enqueued_sidekiq_job(source_user.id, subject[:question].id)
+      expect(QuestionWorker).to have_enqueued_sidekiq_job(source_user.id, subject[:resource].id)
     end
   end
 end