Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

One day, all the courtiers from Akbar's court were gathered in the assembly hall when one of them told the Emperor that all his valuables had been stolen by a thief the previous night.
This shocked the Emperor to his core as the place where that courter stayed was the most secured in the kingdom. The Emperor thought that it is not at all possible for an outsider to enter into the courtier's house and steal the valuables. Only another courtier could commit this crime. He quickly called Birbal to identify the thief.
Birbal thought for a while and successfully solved the mystery by identifying the thief in just one statement.
What did Birbal say?

A sundial has the fewest moving parts of any timepiece. Which has the most?

In the picture given below, can you find out which digit will take place of the question mark?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Spot what is wrong here in below Picture?

Rearrange the letters in "new door" to make one word.

In the formation, you can see a few arranged matchsticks. Can you form three squares by moving just three matchsticks?