private void delay() {
    android.os.Handler myhandler = new android.os.Handler();
    myhandler.postDelayed(new Runnable() {
        @Override
        public void run() {
            Intent nextquest = new Intent(getApplicationContext(), PuzzleAnimal2.class);
            strscore = Integer.toString(score);
            nextquest.putExtra("score", strscore);
            startActivity(nextquest);

        }
    }, 3000);
}

private void delay_timeout() {
    android.os.Handler myhandler = new android.os.Handler();
    myhandler.postDelayed(new Runnable() {
        @Override
        public void run() {
            Intent nextquest = new Intent(getApplicationContext(), PuzzleAnimal2.class);
            strscore = Integer.toString(score);
            nextquest.putExtra("score", strscore);
            startActivity(nextquest);
        }
    }, 100);
}