Find the missing letter in the last circle logically in the given below picture.

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

I have teeth but i don't bite. Who Am I ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What number divided by 4 is the same as that number minus 4?

What is the coolest letter in the alphabet?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?