used for Testimonials
<?php
$args = array(
'post_type'=>'testimonials',
'orderby'=>'rand',
'posts_per_page'=>'1'
);
$testimonials=new WP_Query($args);
while ($testimonials->have_posts()) : $testimonials->the_post();
?>
<h2><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
<p><?php the_excerpt(); // or the_content(); ?></p>
<?php
endwhile;
wp_reset_postdata();
?>