Bay of Bengal is in which state?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

When it's bad luck to meet a black cat?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

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

What is the next number in the series?

15 29 56 108 208 ?

What has 88 keys?