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.

What is Luis Suarez's (Soccer Player) favorite tea?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

Give it food and it will live; give it water and it will die.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

How can one talk without saying a single word?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Can you find the dog hidden in a group of pandas?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?