Learn English – What does “pea’s knees” mean

It means "we are expecting you" or "we have selected you".

Vague wording of this sort is sometimes used in an attempt to be less blunt (i.e to appear more polite) - as if they are merely hoping that you will be happy to volunteer your services.

Imagine a group of people standing in a circle, the leader asks "who can we get to teach the subordinates?" then she stares directly at you and waits in silence. The leader is looking to[wards] you.

The idiom "on his/her/its knees" usually has the connotation of subservience, surrender or defeat.

to destroy or defeat someone or something Sanctions were imposed in an attempt to bring the country to its knees.

So seeing a headline "Tut died on his knees" immediately evokes an image of Tut being killed while begging for mercy or something equally ill-befitting a great historical figure. As with most headlines, it's designed to catch your eye and get you to read more.

Reading the actual article, however, it sounds like they just meant it literally: he was kneeling down. Who knows why.