What has no start, end, or centre?

Which country gets ill every time?

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?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I don't get anymore wetter, no matter how much rain falls on me.

I’m tall when I’m young, and I’m short when I’m old. What am I?