Richie KS

do you meant archive page like this, because its on excerpt already
http://demo.dezzain.com/category/featured/

if you meant index (homepage), you need to reset the featured homepage category in customizer so it will show like archive in homepage.

date or post meta shouldn’t be hidden, did you add any custom css recently?

only pages do not have date stamp like this
http://demo.dezzain.com/page-templates/sitemap/

did you try this?

try add this to custom css

footer .innerwrap, #bodywrap, .innerwrap-custom-header, #main-navigation .innerwrap {
    max-width: 100% !important;
}

if you meant the post content line height, add this to custom css

#custom .post-content .entry-content {line-height:1.4em;}

adjust the 1.4em to your own preference.

add this to custom css

#topbanner {width:100%;text-align:center;}

that should center the banner once the logo is hidden.

you’re using the mega menu plugin so this should be ask on the plugin author on how to add custom item (logo image) into the menu listing.

you could add this to hide the current logo if the top menu logo placed.

#custom #siteinfo { display:none; }

top banner area is flexible, no width fixed apply. you can add 900+ wide ad there.

not that i know of, 1 user update his meso ver 1.3 to latest with latest wp also, seem working fine.

open lib/scripts/custom.js, edit

jQuery('#featuredbox').delay(5000).fadeIn(400);

or this

function startGallery() {
var myGallery = new gallery($('myGallery'), {
timed: true,
delay: 8000,
showArrows: true,
showCarousel: false,
embedLinks: true
});
document.gallery = myGallery;
}
if (typeof onDomReady == 'function') {
window.onDomReady(startGallery);
}

chnage the number, lower means faster, 2000 = 2 sec maybe