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

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

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.

John was piloting a plane behind a car but was never able to overtake it. Why?

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.

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

How can you take 2 from 5 and leave 4?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

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