Can you find a five letter word that is left with only two letters if one is removed?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What is always in front of you but can’t be seen?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?