Harriet wrote:

However, I will give it a try and start with number 1: Yes, Moriarty wears such tie pin and cufflinks. In his case, the tie pin (to be seen in TRF) shows a fox.

Perfectly right, Harriet.
Here you are:

Ok, I guess your confusion is mainly about trying to understand the translation of the words. So as far as possible, I shall give you the straight answers, just the plain facts as we saw and heard them. Then you can draw your own conclusions from them.
You can find a copy of the script HERE, done by the lovely Ariane DeVere

Those two gifts the tie thing (I don't know what it is called) and the cufflinks. Sherlock said that he doesn't use them and he didn't. Did Moriarty? I mean was he wearing things that are called the same?
Yes, as answered already tie pins and cuff links. They are just jewellry for men. They are common gifts to give in those formal situations. Moriarty does have them as you can see in the photo. He dresses very well so it is normal for him to wear them. Mycroft probably does too. Just not Sherlock I guess, lol.

Mycroft mentioned that something happened in 1972 and he wouldn't like that to happen again. What was it?
We are never told what it was that happened in 1972. But Mycroft said, 'with so many diplomats and politicians enjoying a drink or two at the club' so we might presume it was some kind of Government secret that was told to the wrong person after too many alcoholic drinks were had. By making a rule that you cannot talk they hoped it would stop that happening again.

What was the meaning of the little blue ball u know? I think there were two scenes Sherlock playing with it!
It has been suggested that he may have used the ball to temporarily stop his pulse after he fell from the building.
Here is a link to how that magic trick works:HERE
The little rubber balls are also used by peole just to bouce around to relieve stress and tension.

Who told John that Mrs.Hudson had been shot? Who was the one who called him?
We don't know, it was never told to the audience.

Why did Sherlock said that Moriarty didn't wrote anything down? He did wrote, didn't he?
Moriarty carved the letters "I O U" into an apple. He never wrote anything with a pen or pencil however.

What was the thing about the dust?
"Dust is eloquent". Sherlock meant dust was a good sign of telling whether something had been moved even a little on a shelf. There would be a fine line of clean surface instead of dust from where the thing moved had been sitting. He was looking to see what had been moved because he thought someone was spying on them somehow.

I think I saw I.O.U three times: the apple, windows, and the one with those wings. Is that some kind of secret language or meaning that only I can't understand?
I O U is a short way of writing "I owe you" .In English, if you do a favour for someone they will often say " I owe you" meaning they will return the favour one day by doing something equal for you.
Moriarty said " I owe you a fall".
There were only 3 IOU signs shown.


There are many threads on these subjects in the forum. If you want some links to some, just ask and we can find them for you.
Once you read them, post in that thread if you don't understand something & one of us will be able to help you.


I guess what you really need to tell us is if it is just a translation you want or are you asking us all for our ideas about what we think happened.

A paramedic! It really was, I checked it out.

Thanks ur answers were helpful and real real smart btw