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.

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

what's the probability of getting a king or a queen from a pack of 52 cards?

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

What breaks yet never falls, and what falls yet never breaks?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

When it is alive we sing, when it is dead we clap our hands. What is it?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you name an animal whose killing cannot be performed without spilling your own blood?