I shave every day, but my beard stays the same. What am I?

Who has married many women but was never married?

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

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

What is full of holes but still holds water?

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?