Multiple loops on one page( theme's index.php)

Hello, i am creating custom theme and want show one posts of category id=3 in slider and lower then are three boxes, one for home page summery with title and read more, second box is for category id=4 that have latest news and third box is for category id=5 for our services.
I tried two loops at current stage
but home page query not showing any data, while slider of category=3 is running fine. following are queries
this is of slider query, i used wp_reset_query(); after the loop end.

$featuredPosts = new WP_Query('post_type=post&showposts=4&cat=3');
while ($featuredPosts->have_posts()) : $featuredPosts->the_post();

following is the query to call the one page content that i created with the title of Home Page.

$homePage = new WP_Query('pagename=home-page');
while ($homePage->have_posts()) : $homePage->the_post();

NOTE: when i select Static Page (Home Page) from Reading Setting, it shows only page box content and failed the query of slider, when i select Latest Posts then it shows only slider posts and disappear page box content.

thank you very much for your time. please guide me what to do.