About sun and other?

A photon (light particles) takes only eight minutes to get to the Earth from the surface of the sun.
But it can take about 100,000 (one lakh ) Years from the core of the sun to get to the surface --- where it bursts out and files at the speed of light. 

HOW MANY HENS ARE PRESENT IN THE WORLD?

you were shocked to see that the population of the hens is about 3 times the population of the human i.e about 21 billions (2100 crores). the population of humans is about 700 crore.

CHICKENS   OUTNUMBER  HUMANS  BY  3:1

WORLD FIRST TOUCHSCREEN SMARTPHONE?

you know that there are many mobile companies which are  establishing  a  reliable place in the market such companies like  SAMSUNG  ,  OPPO   , VIVO etc.

BUT YOU KNOW WHICH COMPANY BRING THE FIRST MOBILE PHONE:

The world's first mobile phone call was made on April 3, 1973, when Martin Cooper, a senior engineer at Motorola, called a rival telecommunications company and informed them he was speaking via a mobile phone.

WHEN WAS TOUCH SCREEN PHONE COMES?

The IBM Simon was the first phone with a touchscreen in 1992 — it's also referred as the first “smartphone,” . IT has a display which provide us touching facility. We can only dial a call to another using the method of screen touch