I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

what does this below rebus represent identXQQQQQME

Find out the missing number in the picture attached:

How many times do a clock's hands overlap in a day ?

What is the longest word in the dictionary?