questions.rb

  def create
    @question = Question.new(question_params)

    respond_to do |format|
      if @question.save
        format.html { redirect_to @question, notice: "Question was successfully created." }
        format.json { render :show, status: :created, location: @question }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @question.errors, status: :unprocessable_entity }
      end
    end
  end

quiz.rb

  #create method from quiz controller
  
  def create
    @quiz = Quiz.new(quiz_params)

    respond_to do |format|
      if @quiz.save
        # should take to add new questiom
        format.html { redirect_to new_quiz_question_path(@quiz), notice: "Quiz was successfully created." } 
        format.json { render :show, status: :created, location: @quiz }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @quiz.errors, status: :unprocessable_entity }
      end
    end
  end