When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

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?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Why Aeroplane windows are round?

Can you count the number of blocks in the picture below?

When 99 is considered higher than 100?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Decode this picture on T-Shirt and tell what it says ?

Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?