What does the below image rebus riddle means ?

What is the last thing you take off before bed?

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

ST ND RD TH '?'

How can you take 2 from 5 and leave 4?

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

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?