What is the riddle which can be asked all day with a different correct answer each time.

What begins with T, ends with T, and has T in it?

Buy me, smell me or deliver me, I do not change.

Who am I?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

What is red and smells like blue paint?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

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.