I’m tall when I’m young, and I’m short when I’m old. What am I?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

I add 5 to 9 and get 2. The answer is correct, so what am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

If your uncle’s sister is not your aunt, what relation is she to you?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?