If you hide or delete a friend's post on your timeline, are they notified?

Answer No...

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The six friends on the little box at the top of your timeline on Facebook.. How are they selected?

I honestly believe it is people that have view your profile considerable more than your other facebook friends, because it really is the same people that keep coming up. I am guessing that it could... Read More »

Can you hide what friends post on your wall in facebook ?

no, you cant control that, you can only delete the post

If I hide a status from my timeline, can friends still see it?

Yes they can. It will be hidden from your timeline, but will still be in the 'news feed'.

How to delete a post on my timeline made by someone who blocked me?