Decode below rebus
D
N
A
T
S , D

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

What seven-letter word has hundreds of letters in it?

What has 13 hearts but no other organs?

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

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

Which Travels Faster? Solve below famous picture riddle: