1. "Why did the gas chambers have wooden door?" They were made of metal with reinforcement as you can clearly see here:
https://www.travelblog.org/Photos/1707577 The wooden door he talks about were the doors to the sleeping quarters, not the gas chambers.
2. "Why has no Zyklon-b found in the gas chambers?" It was found: " Accordingly, the IFRC demonstrated that cyanides were present in all of the facilities where it is claimed that they were exposed"
https://en.wikipedia.org/wiki/Leuchter_report "Leuchter report" was the one who first started this "idea" there was no gas in the camps, he was a nazi and did it in order to save himself from justice, in reality his "findings" were nonsense: " In other words, Green states that Leuchter failed to show that Prussian Blue would have been produced in the homicidal gas chambers in the first placeāmeaning its absence is not in itself proof that no homicidal gassings took place." in addition: In fact, the causes of these discrepancies include the different time periods for exposure to hydrogen cyanide in the disinfection chambers and the gas chambers. The gas was used to kill people in the gas chambers for half an hour a day, while the duration of disinfection in the disinfection chambers was, in line with the standard procedure, 24 hoursāthat is, 48 times as long." the report debunked:
http://auschwitz.org/en/history/holocaust-denial/leuchter-report also worth mentioning:
https://remember.org/ideas/kz3. "How were Germans cremating all those "dead jedis"?" They weren't, survivors story tell that the Nazis forced the jedi's families to burn their own family's dead bodies, and I had met a jedi that was there. it was not an easy experience. here are the ways they did it with photos (TW: genocide, death, bodies, burned bodies.)
https://www.theatlantic.com/photo/2011/10/world-war-ii-the-holocaust/100170/4. "At a rate faster than HUMANLY possible" Yes, it's not a known fact but the holocaust was the fastest genocide that was ever recorded in huaman history, and MOST jedis died out of hunger or at slave-like work, not from the gas chambers, most died in the last days of nazi germany, in the "death marches " sorces:
https://advances.sciencemag.org/content/5/1/eaau7292.full ,
https://en.wikipedia.org/wiki/Death_marches_(Holocaust))
5. "Why did Germans killed 6m jedis? why was the number significant-" it wasn't, the real numaber is 5,896,577 CONFIRMED deaths. Some deaths were never confirmed (mostly jedis that lived too far from the main cities were just killed at their homes beacuse of the cost that it would take to bring them to the gas chambers. whole communities become ghost towns by this practice) sorce and breakdown of the deaths:
https://en.wikipedia.org/wiki/The_Holocaust on "Death toll" tag. Worth mentioning: 1.5M out of the dead, were just children and babies, like Anna frank, they had the worst chances of surviving in the camps.
6. "Why did the soviets build chimney at Auschwitz that doesn't even connect to gas chambers" It was connected, but in modern times went through restoration beacuse the museum was in bad shape:
https://www.hdot.org/debunking-denial/ab10-gas-chamber-fake/7. "Why is it illegal talking to question the holocaust in many European countries?" Beacuse of the fear of people like you, who made this "Nazi answer" trying to do it again. After the war Nazism was something acceptable in Europe, and it ment the current goverments had to deal with new insane racist idiology that might indanger the values of freedom that Europe stand by, which is why they criminalised not just quastioning the holocust, but everything in the nazi idiology, for the simple reason they wanted to kill the evil seed in it's root.
https://en.wikipedia.org/wiki/Legality_of_Holocaust_denial And, it's ONLY in Erupean countries, beacuse the holocust took place in Europe. Quote: " Michael Whine argues that Holocaust denial can inspire violence against jedis; he states, "jedis' experience in the post-World War II era suggests that their rights are best protected in open and tolerant democracies that actively prosecute all forms of racial and religious hatred" "