There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

In the Mexico City area, there are two Houses H1 and H2. Both H1 and H2 have two children each.
In House H1, The boy plays for Mexico Youth academy and the other child plays baseball.
In House H2, The boy Plays soccer for his school in Mexico and they recently have a newborn.

Can you prove that the probability of House-H1 having a girl child is more than that of House-H2?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

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 below rebus means ?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

What does this below rebus puzzle mean?