Query a list of child pages for a parent
Description
This code is to be used in page template to query a list of children of the current page.

PHP Source Code
<?php
$args = array(
'post_type' => 'page',
'posts_per_page' => -1,
'post_parent' => $post->ID,
'order' => 'ASC',
'orderby' => 'menu_order'
);
$parent = new WP_Query( $args );
if ( $parent->have_posts() ) : ?>
<?php while ( $parent->have_posts() ) : $parent->the_post(); ?>
<!--Children Page details start here-->
<!--Children Page details End here-->
<?php endwhile; ?>
<?php endif; wp_reset_postdata(); ?>