Questions

Email inventor Ray Tomlinson dies at 74. Ray Tomlinson, who sent the first e-mail, has died.

Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.
And a 15 min interval
Total time they take to do 52 programs is 52 hours 15 minutes.

Varanasi and Patna are located on the river Ganga. Lucknow is on the river Gomati. Kanpur and Hardwar too are on the river Ganga. Delhi is another city located on the bank of Yamuna.

There are 8 holes in this given shirt.

Because of its being pollution free and  combustion efficient, Hydrogen gas is  called fuel of future. Because of its origin in marshy places, Methane is called as 'Marsh Gas'.