A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

I don't get anymore wetter, no matter how much rain falls on me.

Do You See It?

If eleven plus two equals one, what does nine plus five equal?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What breaks yet never falls, and what falls yet never breaks?

I have an eye but still cannot see.

Who am I?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What has to be broken before you can use it?