It belongs to you, but other people use it more than you do. What is it?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

I taste better than I can smell. Who am I?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

I have teeth but i don't bite. Who Am I ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?