What English word has three consecutive double letters?

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

what does the below rebus mean?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

Why is Saturday stronger than Monday?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?