Thumbnail / Featured Image
<?php echo get_the_post_thumbnail_url( null, 'full' ); ?>Post / Page Title
<?php echo get_the_title(); ?>Category List
<?php echo get_the_category_list(); ?>The content
<?php echo get_the_content(); ?>Custom post field
<?php
$custom_field = get_post_meta(get_the_ID() , 'custom_post_field', true);
echo $custom_field;
?>
CPT UI Category List
<?php echo get_the_term_list(get_the_ID(), 'your_category', '', ', ', ''); ?>