The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

If a wheel has 54 spokes, how many spaces are there between the spokes?

What do you call a fish without an eye?

Why is the Hole below a Lock?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

The more you take me, the more you leave me behind.
Who Am I?