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

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

What has one letter and starts with an E?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

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

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

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

If you say my name, I will no longer exist. What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?