cursor = getReadableDatabase().rawQuery(
                    String.format(
                            "SELECT a.%s %s, question_id, a.text text, is_correct " +
                                    "FROM %s a JOIN %s q ON a.question_id = q.%s " +
                                    "JOIN %s l ON q.level_id = l.%s WHERE l.level = ? AND q.is_active = 1",
                            BaseColumns._ID, BaseColumns._ID,
                            ANSWERS_TABLE_NAME, QUESTIONS_TABLE_NAME, BaseColumns._ID,
                            LEVELS_TABLE_NAME, BaseColumns._ID
                    ),
                    new String[]{Integer.toString(level)}

cursor = getReadableDatabase().rawQuery(
                String.format(
                        "SELECT a.%s %s, question_id, a.text text, is_correct " +
                                "FROM %s a JOIN %s q ON a.question_id = q.%s WHERE q.category = ? AND q.is_active = 1 ",
                        BaseColumns._ID, BaseColumns._ID,
                        ANSWERS_TABLE_NAME, QUESTIONS_TABLE_NAME, BaseColumns._ID
                ),
                new String[]{thisQuestionCategory});