No, this would be a logical contradiction.
The universe is older
Slightly younger than the universe.
All parts of our Universe our exactly the same age. There is no "inside" and no "outside" -- all parts of our Universe came into being at exactly the same amount, and no part is closer to an edge than another. That part of our Universe that we on our planet can see -- what we called the "visible Universe" -- does have this feature: the farther an object is from us, the farther back in time is what we are seeing. For example, if we view an object one billion light years from us, we are seeing what was occuring there one billion years ago; for an object two billion light years from us, what we are seeing occurred two billion years ago.
No. The sun exists as inside the universe and was created after the big bang. Nothing (that we know of) existed before the universe.
Younger than me is correct.
Depends on how much younger she is than you. Depends on how much younger she is than you.
"Younger than you" is correct. This is the standard way to construct comparative phrases when comparing ages.
The fact that most quasars are very distant means they were like that when the Universe was quite a bit younger than it is today.
Younger Than Springtime was created in 1949.
A brother or sister that is younger than you.
The Universe was never smaller than an atom.
It depends how much younger than you