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?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

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

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

What is next number in the pattern below:

131 517 192 123 ?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?