When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A man dies of old age on his 25 birthday. How is this possible?

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.

In the image given, you can find several triangles. Can you count them all?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What is the end of everything?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?