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?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

In the picture given below, can you find out which digit will take place of the question mark?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Who always enjoys poor health?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?