What is at the end of a rainbow?

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?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

If eleven plus two equals one, what does nine plus five equal?

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?

What is the next shape from answers A, B, C, and D figure?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?