Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What does man love more than life, and hate more than death or mortal strife; that which satisfied men want; the poor have, and the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I am white when I am dirty, and black when I am clean. What am I?

What does does this rebus picture means ?

Which city is three-fifths chick two third cat and 50% goat?

What is the word or phrase?

Count the number of triangles in the given picture.

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?