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

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

I am the fastest animal but cannot climb the tree. What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

The more you take me, the more you leave me behind.
Who Am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months