You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

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

No matter how little or how much you use me, you change me every month. What am I?

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

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

What am I?

Take one out and scratch my head, I am now black but once was red. What am I?

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

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?