What has one letter and starts with an E?

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

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

What demands an answer, but asks no questions

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?