Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What do you see in the given picture?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?