How to query posts with paginate

global $wp_query;

	$args = array(
	        'post_type'=>'post',
		'post_status'=> 'publish',
		'posts_per_page' => 8,
		'cat' => 681,16,17,18,19,20,21,22,23,24,
		'category_name'  => get_query_var( 'category_name' ),
		'paged'          => get_query_var( 'paged' )
	);
	
$wp_query = new WP_Query( $args );