Why Wine Glass Stem is so long?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

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

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

When it's bad luck to meet a black cat?

Using Only Five 5's and any mathematical operator make sum as 37

What number when divided in half becomes zero?

Can you count the number of squares in the figure below?