i want to add two text box in admin add new post page

i want to add two text box in admin add new post. number one is name and number two is age than display the data in index page…
index.php example here……….\

<?php if ( have_posts() ) : ?>

			<?php /* The loop */ ?>
			<?php while ( have_posts() ) : the_post(); ?>
				<div><a href="<?php the_permalink()?>"><?php the_title(); ?></a></div>
				<div><?php the_content(); ?></div>
				<div class="personal_details">
  					<div class="name"><strong>hint.... get data by text box one</strong></div>
  					<div class="age"><strong>hint.... get data by text box two</strong></div>
				</div>
			<?php endwhile; ?>

			<?php mytheme_paging_nav(); ?>

		<?php else : ?>
			<?php get_template_part( 'content', 'none' ); ?>
		<?php endif; ?>

how it possible plsss help me i am new here……