diff --git a/app/src/main/java/com/example/alzapp/QuickQuizStart.java b/app/src/main/java/com/example/alzapp/QuickQuizStart.java
index 12fa101..e98ff29 100644
--- a/app/src/main/java/com/example/alzapp/QuickQuizStart.java
+++ b/app/src/main/java/com/example/alzapp/QuickQuizStart.java
@@ -1,28 +1,78 @@
 package com.example.alzapp;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.TextView;
 
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
 public class QuickQuizStart extends AppCompatActivity {
 
+    private static final int REQUEST_CODE_QUIZ = 1;
+
+    public static final String SHARED_PREFS = "sharedPrefs";
+    public static final String KEY_HIGHSCORE = "keyHighScore";
+
+    private TextView textViewHighScore;
+    private int highScore;
+
     private Button quiz_start;
+
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_quick_quiz_start);
 
+        textViewHighScore = findViewById(R.id.quiz_highScore);
+        loadHighScore();
+
         quiz_start = findViewById(R.id.start_quiz);
         quiz_start.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 Intent intent = new Intent(QuickQuizStart.this,QuizQuestionPage.class);
-                startActivity(intent);
+                startActivityForResult(intent,REQUEST_CODE_QUIZ);
             }
         });
 
     }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if(requestCode == REQUEST_CODE_QUIZ){
+           if(resultCode == RESULT_OK){
+                int score = data.getIntExtra(QuizQuestionPage.EXTRA_SCORE,0);
+                if(score > highScore){
+                    updateHighScore(score);
+                }
+           }
+        }
+
+    }
+
+    private void updateHighScore(int highScoreNew){
+        highScore = highScoreNew;
+        textViewHighScore.setText("Highscore: "+ highScore);
+
+        SharedPreferences prefs = getSharedPreferences(SHARED_PREFS, MODE_PRIVATE);
+        SharedPreferences.Editor editor = prefs.edit();
+        editor.putInt(KEY_HIGHSCORE, highScore);
+        editor.apply();
+    }
+
+
+    private void loadHighScore(){
+        SharedPreferences prefs = getSharedPreferences(SHARED_PREFS,MODE_PRIVATE);
+        highScore = prefs.getInt(KEY_HIGHSCORE,0);
+        textViewHighScore.setText("Highscore: "+ highScore);
+
+    }
+
 }
diff --git a/app/src/main/java/com/example/alzapp/QuizDbHelper.java b/app/src/main/java/com/example/alzapp/QuizDbHelper.java
index ada248f..3bed53d 100644
--- a/app/src/main/java/com/example/alzapp/QuizDbHelper.java
+++ b/app/src/main/java/com/example/alzapp/QuizDbHelper.java
@@ -8,12 +8,13 @@ import android.database.sqlite.SQLiteOpenHelper;
 
 import com.example.alzapp.QuizContract.* ;
 
+
 import java.util.ArrayList;
 import java.util.List;
 
-public class QuizDbHelper extends SQLiteOpenHelper {
 
-    private static final String DATABASE_NAME = "Quiz.db";
+public class QuizDbHelper extends SQLiteOpenHelper {
+    private static final String DATABASE_NAME = "MyAwesomeQuiz.db";
     private static final int DATABASE_VERSION = 1;
 
     private SQLiteDatabase db;
@@ -24,7 +25,6 @@ public class QuizDbHelper extends SQLiteOpenHelper {
 
     @Override
     public void onCreate(SQLiteDatabase db) {
-
         this.db = db;
 
         final String SQL_CREATE_QUESTIONS_TABLE = "CREATE TABLE " +
@@ -38,66 +38,67 @@ public class QuizDbHelper extends SQLiteOpenHelper {
                 ")";
 
         db.execSQL(SQL_CREATE_QUESTIONS_TABLE);
-
         fillQuestionsTable();
-
     }
 
     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-            db.execSQL("DROP TABLE IF EXISTS " + QuestionsTable.TABLE_NAME);
-            onCreate(db);
+        db.execSQL("DROP TABLE IF EXISTS " + QuestionsTable.TABLE_NAME);
+        onCreate(db);
     }
 
-    private void fillQuestionsTable(){
-        Question q1 = new Question("A is correct", "A", "B", "C", 1);
+    private void fillQuestionsTable() {
+        Question q1 = new Question("What is 2+2?", "4", "12", "17", 1);
         addQuestion(q1);
-
-        Question q2 = new Question("B is correct", "A", "B", "C", 2);
+        Question q2 = new Question("Which letter comes after A,B,C,D in the english alphabet series?", "F", "E", "D", 2);
         addQuestion(q2);
-
-        Question q3 = new Question("C is correct", "A", "B", "C", 3);
+        Question q3 = new Question("How many letters are present in the english alphabet?", "28", "25", "26", 3);
         addQuestion(q3);
-
-        Question q4 = new Question("A is correct again", "A", "B", "C", 1);
+        Question q4 = new Question("8,16,24, __  Which number should come in the blank space ?", "34", "32", "48", 2);
         addQuestion(q4);
-
-        Question q5 = new Question("B is correct again", "A", "B", "C", 2);
+        Question q5 = new Question("In tossing of a fair coin, what is the probability of getting a head? ", "50%", "40%", "55%", 1);
         addQuestion(q5);
+        Question q6 = new Question("The total number of states present in India is", "27", "28", "29", 2);
+        addQuestion(q6);
+        Question q7 = new Question("The Hindi film industry is better known as ", "Bollywood", "Tollywood", "Sandalwood", 1);
+        addQuestion(q7);
+        Question q8 = new Question("Which city is also known as the Silicon Valley of Asia ?", "Mumbai", "Abu Dhabi", "Bangalore", 3);
+        addQuestion(q8);
+        Question q9 = new Question("Total number of bones present in the human body is ", "204", "205", "206", 3);
+        addQuestion(q9);
+        Question q10 = new Question("Novak Djokovic is a famous player associated with the game of ", "Basketball", "Tennis", "Cricket", 1);
+        addQuestion(q10);
 
     }
 
-    private void addQuestion(Question question){
+    private void addQuestion(Question question) {
         ContentValues cv = new ContentValues();
         cv.put(QuestionsTable.COLUMN_QUESTION, question.getQuestion());
         cv.put(QuestionsTable.COLUMN_OPTION1, question.getOption1());
-        cv.put(QuestionsTable.COLUMN_OPTION1, question.getOption1());
         cv.put(QuestionsTable.COLUMN_OPTION2, question.getOption2());
         cv.put(QuestionsTable.COLUMN_OPTION3, question.getOption3());
         cv.put(QuestionsTable.COLUMN_ANSWER_NR, question.getAnswerNr());
-
         db.insert(QuestionsTable.TABLE_NAME, null, cv);
-
     }
 
+    public List<Question> getAllQuestions() {
+        List<Question> questionList = new ArrayList<>();
+        db = getReadableDatabase();
+        Cursor c = db.rawQuery("SELECT * FROM " + QuestionsTable.TABLE_NAME, null);
 
-    public List<Question> getAllQuestions(){
-            List<Question> questionList = new ArrayList<>();
-            db = getReadableDatabase();
-            Cursor c = db.rawQuery("SELECT * FROM " + QuestionsTable.TABLE_NAME, null);
-
-            if(c.moveToFirst()){
-                do{
-                    Question question = new Question();
-                    question.setQuestion(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_QUESTION)));
-                    question.setOption1(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION1)));
-                    question.setOption2(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION2)));
-                    question.setOption3(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION3)));
-                    question.setAnswerNr(c.getInt(c.getColumnIndex(QuestionsTable.COLUMN_ANSWER_NR)));
-                } while (c.moveToNext());
-            }
+        if (c.moveToFirst()) {
+            do {
+                Question question = new Question();
+                question.setQuestion(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_QUESTION)));
+                question.setOption1(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION1)));
+                question.setOption2(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION2)));
+                question.setOption3(c.getString(c.getColumnIndex(QuestionsTable.COLUMN_OPTION3)));
+                question.setAnswerNr(c.getInt(c.getColumnIndex(QuestionsTable.COLUMN_ANSWER_NR)));
+                questionList.add(question);
+            } while (c.moveToNext());
+        }
 
         c.close();
         return questionList;
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/alzapp/QuizQuestionPage.java b/app/src/main/java/com/example/alzapp/QuizQuestionPage.java
index 8c02020..7e0157f 100644
--- a/app/src/main/java/com/example/alzapp/QuizQuestionPage.java
+++ b/app/src/main/java/com/example/alzapp/QuizQuestionPage.java
@@ -1,22 +1,30 @@
 package com.example.alzapp;
 
+import android.content.Intent;
 import android.content.res.ColorStateList;
+import android.graphics.Color;
 import android.os.Bundle;
+import android.os.CountDownTimer;
+import android.view.View;
 import android.widget.Button;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.TextView;
-
+import android.widget.Toast;
 import androidx.appcompat.app.AppCompatActivity;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 
 public class QuizQuestionPage extends AppCompatActivity {
 
+    public static final String EXTRA_SCORE = "extraScore";
+    private static final long COUNT_DOWN_MILLIS = 10000;
+
     private TextView textViewQuestion;
     private TextView textViewScore;
-    private TextView textViewQuestionCount ;
+    private TextView textViewQuestionCount;
     private TextView textViewCountDown;
     private RadioGroup rbGroup;
     private RadioButton rb1;
@@ -25,7 +33,10 @@ public class QuizQuestionPage extends AppCompatActivity {
     private Button buttonConfirmNext;
 
     private ColorStateList textColorDefaultRb;
+    private ColorStateList textColorDefaultCd;
 
+    private CountDownTimer countDownTimer;
+    private long timeLeftInMillis;
 
     private List<Question> questionList;
     private int questionCounter;
@@ -35,6 +46,8 @@ public class QuizQuestionPage extends AppCompatActivity {
     private int score;
     private boolean answered;
 
+    private long backPressedTime;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -50,6 +63,10 @@ public class QuizQuestionPage extends AppCompatActivity {
         rb3 = findViewById(R.id.radioButton32);
         buttonConfirmNext = findViewById(R.id.quiz_confirm_next);
 
+
+        textColorDefaultRb = rb1.getTextColors();
+        textColorDefaultCd = textViewCountDown.getTextColors();
+
         QuizDbHelper dbHelper = new QuizDbHelper(this);
         questionList = dbHelper.getAllQuestions();
         questionCountTotal = questionList.size();
@@ -57,30 +74,151 @@ public class QuizQuestionPage extends AppCompatActivity {
 
         showNextQuestion();
 
+        buttonConfirmNext.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (!answered) {
+                    if (rb1.isChecked() || rb2.isChecked() || rb3.isChecked()) {
+                        checkAnswer();
+                    } else {
+                        Toast.makeText(QuizQuestionPage.this, "Please select an answer", Toast.LENGTH_SHORT).show();
+                    }
+                } else {
+                    showNextQuestion();
+                }
+            }
+        });
     }
 
-    private void showNextQuestion(){
+    private void showNextQuestion() {
         rb1.setTextColor(textColorDefaultRb);
         rb2.setTextColor(textColorDefaultRb);
         rb3.setTextColor(textColorDefaultRb);
         rbGroup.clearCheck();
 
-            if ( questionCounter < questionCountTotal){
-                currentQuestion = questionList.get(questionCounter);
+        if (questionCounter < questionCountTotal) {
+            currentQuestion = questionList.get(questionCounter);
 
-                textViewQuestion.setText(currentQuestion.getQuestion());
-                rb1.setText(currentQuestion.getOption1());
-                rb2.setText(currentQuestion.getOption2());
-                rb3.setText(currentQuestion.getOption3());
+            textViewQuestion.setText(currentQuestion.getQuestion());
+            rb1.setText(currentQuestion.getOption1());
+            rb2.setText(currentQuestion.getOption2());
+            rb3.setText(currentQuestion.getOption3());
 
-                questionCounter++;
-                textViewQuestionCount.setText("Question: "+ questionCounter + "/" + questionCountTotal);
-                answered = false;
-                buttonConfirmNext.setText("Confirm");
-            }
+            questionCounter++;
+            textViewQuestionCount.setText("Question: " + questionCounter + "/" + questionCountTotal);
+            answered = false;
+            buttonConfirmNext.setText("Confirm");
 
-            else {
-             finish();
-            }
+            timeLeftInMillis = COUNT_DOWN_MILLIS;
+            startCountdown();
+
+        } else {
+            finishQuiz();
+        }
     }
-}
\ No newline at end of file
+
+
+    private void startCountdown(){
+        countDownTimer = new CountDownTimer(timeLeftInMillis,1000) {
+            @Override
+            public void onTick(long millisUntilFinished) {
+                timeLeftInMillis = millisUntilFinished;
+                updateCountDownText();
+            }
+
+            @Override
+            public void onFinish() {
+                timeLeftInMillis = 0;
+                updateCountDownText();
+                checkAnswer();
+            }
+        }.start();
+    }
+
+    private void updateCountDownText(){
+        int minutes = (int) (timeLeftInMillis / 1000) /60;
+        int seconds = (int) (timeLeftInMillis / 1000) %60;
+
+        String timeFormatted = String.format(Locale.getDefault(),"%02d:%02d",minutes,seconds);
+        textViewCountDown.setText(timeFormatted);
+
+
+        if(timeLeftInMillis < 5000){
+            textViewCountDown.setTextColor(Color.GREEN);
+        }
+        else {
+            textViewCountDown.setTextColor(textColorDefaultCd);
+        }
+    }
+
+    private void checkAnswer() {
+        answered = true;
+
+        countDownTimer.cancel();
+
+        RadioButton rbSelected = findViewById(rbGroup.getCheckedRadioButtonId());
+        int answerNr = rbGroup.indexOfChild(rbSelected) + 1;
+
+        if (answerNr == currentQuestion.getAnswerNr()) {
+            score++;
+            textViewScore.setText("Score: " + score);
+        }
+
+        showSolution();
+    }
+
+    private void showSolution() {
+      /**  rb1.setTextColor(Color.RED);
+        rb2.setTextColor(Color.RED);
+        rb3.setTextColor(Color.RED);    **/
+
+        switch (currentQuestion.getAnswerNr()) {
+            case 1:
+               // rb1.setTextColor(Color.GREEN);
+                textViewQuestion.setText("Answer 1 is correct");
+                break;
+            case 2:
+               // rb2.setTextColor(Color.GREEN);
+                textViewQuestion.setText("Answer 2 is correct");
+                break;
+            case 3:
+               // rb3.setTextColor(Color.GREEN);
+                textViewQuestion.setText("Answer 3 is correct");
+                break;
+        }
+
+        if (questionCounter < questionCountTotal) {
+            buttonConfirmNext.setText("Next");
+        } else {
+            buttonConfirmNext.setText("Finish");
+        }
+    }
+
+    private void finishQuiz() {
+        Intent resultIntent = new Intent();
+        resultIntent.putExtra(EXTRA_SCORE,score);
+        setResult(RESULT_OK,resultIntent);
+        finish();
+    }
+
+    @Override
+    public void onBackPressed() {
+        if(backPressedTime + 2000 > System.currentTimeMillis()){
+            finishQuiz();
+        }
+        else {
+        Toast.makeText(this,"Press back again to finish",Toast.LENGTH_SHORT).show();
+        }
+
+        backPressedTime = System.currentTimeMillis();
+    }
+
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        if(countDownTimer != null){
+            countDownTimer.cancel();
+        }
+    }
+}
diff --git a/app/src/main/java/com/example/alzapp/TileMatchingActivity.java b/app/src/main/java/com/example/alzapp/TileMatchingActivity.java
index 7175ae2..46e3ef9 100644
--- a/app/src/main/java/com/example/alzapp/TileMatchingActivity.java
+++ b/app/src/main/java/com/example/alzapp/TileMatchingActivity.java
@@ -8,6 +8,7 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.view.View;
 import android.widget.Button;
+import android.widget.Chronometer;
 import android.widget.ImageView;
 import android.widget.TextView;
 
@@ -38,7 +39,8 @@ public class TileMatchingActivity extends AppCompatActivity {
             img201,img202,img203,img204,img205,img206,img207,img208,
             firstCard,secondCard,clickedFirst,clickedSecond,cardNumber=1,playerMoves=0;
 
-
+        private Chronometer chronometer;
+        public boolean running;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -46,6 +48,9 @@ public class TileMatchingActivity extends AppCompatActivity {
         setContentView(R.layout.activity_tile_matching);
         counter=(TextView) findViewById(R.id.counter1);
 
+        chronometer = findViewById(R.id.tileMatching_chronometer);
+
+
         i11=(ImageView) findViewById(R.id.i11);
         i12=(ImageView) findViewById(R.id.i12);
         i13=(ImageView) findViewById(R.id.i13);
@@ -222,8 +227,6 @@ public class TileMatchingActivity extends AppCompatActivity {
 
 
 
-
-
         Button back = (Button) findViewById(R.id.back);
 
         back.setOnClickListener(new View.OnClickListener() {
@@ -233,9 +236,16 @@ public class TileMatchingActivity extends AppCompatActivity {
             }
         });
 
+        /**  Game timer **/
+        if(!running){
+            chronometer.start();
+            running = true;
+        }
 
     }
 
+
+
     private void doStuff(ImageView img,int card){
         if(cardsArray[card]==101){
             img.setImageResource(img101);
@@ -495,9 +505,14 @@ public class TileMatchingActivity extends AppCompatActivity {
                 i44.getVisibility()==View.INVISIBLE
         ){
             AlertDialog.Builder message= new AlertDialog.Builder(TileMatchingActivity.this);
-            message.setMessage("GAME OVER!!\nMOVES= "+counter)
-                    .setCancelable(false)
-                    .setPositiveButton("NEXT", new DialogInterface.OnClickListener() {
+            message.setMessage("GAME OVER!!\nMOVES= "+counter);
+            /** Timer end **/
+            if(running){
+                chronometer.stop();
+                running = false;
+            }
+            message.setCancelable(false);
+            message.setPositiveButton("NEXT", new DialogInterface.OnClickListener() {
                         @Override
                         public void onClick(DialogInterface dialog, int which) {
                             finish();
diff --git a/app/src/main/res/layout/activity_quick_quiz_start.xml b/app/src/main/res/layout/activity_quick_quiz_start.xml
index daeff2a..2f2d77b 100644
--- a/app/src/main/res/layout/activity_quick_quiz_start.xml
+++ b/app/src/main/res/layout/activity_quick_quiz_start.xml
@@ -15,9 +15,10 @@
         android:textColor="@android:color/black" />
 
     <TextView
+        android:id="@+id/quiz_highScore"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="High Score"
+        android:text="Highscore : 0"
         android:textSize="20dp"
         android:layout_centerHorizontal="true"
         android:layout_marginTop="160dp"
diff --git a/app/src/main/res/layout/activity_quiz_question_page.xml b/app/src/main/res/layout/activity_quiz_question_page.xml
index 8fb9a9a..14460c3 100644
--- a/app/src/main/res/layout/activity_quiz_question_page.xml
+++ b/app/src/main/res/layout/activity_quiz_question_page.xml
@@ -83,7 +83,7 @@
         android:id="@+id/quiz_confirm_next"
         android:layout_width="160dp"
         android:layout_height="50dp"
-        android:text="next"
+        android:text="confirm"
         android:background="@drawable/button_menu"
         android:layout_below="@id/quiz_radio_group"
         android:layout_marginTop="50dp"
diff --git a/app/src/main/res/layout/activity_tile_matching.xml b/app/src/main/res/layout/activity_tile_matching.xml
index fc94d66..233fb07 100644
--- a/app/src/main/res/layout/activity_tile_matching.xml
+++ b/app/src/main/res/layout/activity_tile_matching.xml
@@ -43,6 +43,15 @@
         android:text="MOVES= 0"
         android:textSize="20sp"/>
 
+    <Chronometer
+        android:id="@+id/tileMatching_chronometer"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_marginLeft="16dp"
+        android:textSize="24sp"/>
+
+
 
 
 </RelativeLayout>
\ No newline at end of file