Why Wine Glass Stem is so long?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Can you tell a 3D object that has just two surfaces?

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

How many triangles are there on the puzzle below?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

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

What can you see in the middle of March and April that you can never see in any other month?