A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

Which number comes next in the number series?

2, 9, 30, 93, ?

It belongs to you, but other people use it more than you do. What is it?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

What does Alexander the Great and Winnie the Pooh have in common?