diff --git a/app/controllers/ajax/inbox_controller.rb b/app/controllers/ajax/inbox_controller.rb
index 2a7c67a4..77042d62 100644
--- a/app/controllers/ajax/inbox_controller.rb
+++ b/app/controllers/ajax/inbox_controller.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Ajax::InboxController < AjaxController
   def remove
     params.require :id
@@ -28,7 +30,7 @@ class Ajax::InboxController < AjaxController
     raise unless user_signed_in?
 
     begin
-      InboxEntry.where(user: current_user).each { |i| i.remove }
+      InboxEntry.where(user: current_user).find_each(&:remove)
     rescue => e
       Sentry.capture_exception(e)
       @response[:status] = :err
@@ -43,10 +45,10 @@ class Ajax::InboxController < AjaxController
 
   def remove_all_author
     begin
-      @target_user = User.where('LOWER(screen_name) = ?', params[:author].downcase).first!
+      @target_user = User.where("LOWER(screen_name) = ?", params[:author].downcase).first!
       @inbox = current_user.inbox_entries.joins(:question)
-                                         .where(questions: { user_id: @target_user.id, author_is_anonymous: false })
-      @inbox.each { |i| i.remove }
+                           .where(questions: { user_id: @target_user.id, author_is_anonymous: false })
+      @inbox.each(&:remove)
     rescue => e
       Sentry.capture_exception(e)
       @response[:status] = :err
diff --git a/app/models/question.rb b/app/models/question.rb
index 2c289a88..2e7549af 100644
--- a/app/models/question.rb
+++ b/app/models/question.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Question < ApplicationRecord
   include Question::AnswerMethods
 
@@ -11,7 +13,7 @@ class Question < ApplicationRecord
   SHORT_QUESTION_MAX_LENGTH = 512
 
   before_destroy do
-    rep = Report.where(target_id: self.id, type: 'Reports::Question')
+    rep = Report.where(target_id: self.id, type: "Reports::Question")
     rep.each do |r|
       unless r.nil?
         r.deleted = true
@@ -25,8 +27,9 @@ class Question < ApplicationRecord
   end
 
   def can_be_removed?
-    return false if self.answers.count > 0
+    return false if self.answers.count.positive?
     return false if InboxEntry.where(question: self).count > 1
+
     true
   end
 
diff --git a/db/migrate/20240127112216_rename_inboxes_to_inbox_entries.rb b/db/migrate/20240127112216_rename_inboxes_to_inbox_entries.rb
index 6c1aeff5..03a8f55b 100644
--- a/db/migrate/20240127112216_rename_inboxes_to_inbox_entries.rb
+++ b/db/migrate/20240127112216_rename_inboxes_to_inbox_entries.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RenameInboxesToInboxEntries < ActiveRecord::Migration[7.0]
   def change
     rename_table :inboxes, :inbox_entries
diff --git a/spec/controllers/ajax/inbox_controller_spec.rb b/spec/controllers/ajax/inbox_controller_spec.rb
index 074a92ae..6e48e53e 100644
--- a/spec/controllers/ajax/inbox_controller_spec.rb
+++ b/spec/controllers/ajax/inbox_controller_spec.rb
@@ -7,11 +7,11 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
   describe "#remove" do
     let(:params) do
       {
-        id: inbox_entry_id
+        id: inbox_entry_id,
       }
     end
 
-    subject { delete(:remove, params: params) }
+    subject { delete(:remove, params:) }
 
     context "when user is signed in" do
       before(:each) { sign_in(user) }
@@ -28,8 +28,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
           let(:expected_response) do
             {
               "success" => true,
-              "status" => "okay",
-              "message" => anything
+              "status"  => "okay",
+              "message" => anything,
             }
           end
 
@@ -46,8 +46,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
           let(:expected_response) do
             {
               "success" => false,
-              "status" => "fail",
-              "message" => anything
+              "status"  => "fail",
+              "message" => anything,
             }
           end
 
@@ -65,8 +65,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
         let(:expected_response) do
           {
             "success" => false,
-            "status" => "not_found",
-            "message" => anything
+            "status"  => "not_found",
+            "message" => anything,
           }
         end
 
@@ -79,8 +79,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       let(:expected_response) do
         {
           "success" => false,
-          "status" => "not_found",
-          "message" => anything
+          "status"  => "not_found",
+          "message" => anything,
         }
       end
 
@@ -97,8 +97,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       let(:expected_response) do
         {
           "success" => true,
-          "status" => "okay",
-          "message" => anything
+          "status"  => "okay",
+          "message" => anything,
         }
       end
 
@@ -107,7 +107,7 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       context "when user has some inbox entries" do
         let(:some_other_user) { FactoryBot.create(:user) }
         before do
-          10.times { FactoryBot.create(:inbox_entry, user: user) }
+          10.times { FactoryBot.create(:inbox_entry, user:) }
           10.times { FactoryBot.create(:inbox_entry, user: some_other_user) }
         end
 
@@ -123,8 +123,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       let(:expected_response) do
         {
           "success" => false,
-          "status" => "err",
-          "message" => anything
+          "status"  => "err",
+          "message" => anything,
         }
       end
 
@@ -135,11 +135,11 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
   describe "#remove_all_author" do
     let(:params) do
       {
-        author: author
+        author:,
       }
     end
 
-    subject { delete(:remove_all_author, params: params) }
+    subject { delete(:remove_all_author, params:) }
 
     context "when user is signed in" do
       before(:each) { sign_in(user) }
@@ -148,8 +148,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       let(:expected_response) do
         {
           "success" => true,
-          "status" => "okay",
-          "message" => anything
+          "status"  => "okay",
+          "message" => anything,
         }
       end
 
@@ -162,9 +162,9 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
           normal_question = FactoryBot.create(:question, user: some_other_user, author_is_anonymous: false)
           anon_question = FactoryBot.create(:question, user: some_other_user, author_is_anonymous: true)
 
-          10.times { FactoryBot.create(:inbox_entry, user: user) }
-          3.times { FactoryBot.create(:inbox_entry, user: user, question: normal_question) }
-          2.times { FactoryBot.create(:inbox_entry, user: user, question: anon_question) }
+          10.times { FactoryBot.create(:inbox_entry, user:) }
+          3.times { FactoryBot.create(:inbox_entry, user:, question: normal_question) }
+          2.times { FactoryBot.create(:inbox_entry, user:, question: anon_question) }
         end
 
         it "deletes all the entries asked by some other user which are not anonymous from the user's inbox" do
@@ -179,8 +179,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
         let(:expected_response) do
           {
             "success" => false,
-            "status" => "err",
-            "message" => anything
+            "status"  => "err",
+            "message" => anything,
           }
         end
 
@@ -193,8 +193,8 @@ describe Ajax::InboxController, :ajax_controller, type: :controller do
       let(:expected_response) do
         {
           "success" => false,
-          "status" => "err",
-          "message" => anything
+          "status"  => "err",
+          "message" => anything,
         }
       end