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!!!

The more of this there is, the less you see. What is it?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

Next Number in the Series,

5, 16, 49, 104, ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

What does this Rebus Picture mean?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?