Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Which word does the below Plexor means ?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Find the 8 in the below-given Image.

A father's child, a mother's child, yet no one's son.

Who am I?

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?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Can you name some countries which do not have the alphabet 'A' in them?

What has many keys but can’t open a single lock?