If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Make a sentence consisting of three words that have the whole alphabet.

In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10?

What does a man do only once in his lifetime, but women do once a year after they are 29?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

Can you make a six-letter word using the letters N, A and B ?

If eleven plus two equals one, what does nine plus five equal?

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

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 ?