What is wrong in the below Picture?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

I have an eye but still cannot see.

Who am I?

What is the coolest letter in the alphabet?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Why Wine Glass Stem is so long?

I have Rs.50 and I spend it in the way as below.