Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

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

There was a strange boy who was born before his father. How can this be possible?

What is the difference between a jeweller and a jailer?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?