Kufr

Q:

1. I read online that if one plays holi (hindu festival) then they are out of the fold of Islam. Is this true?

2. What if one is walking, not intending to play holi, just going out for work or leisure and colour is thrown on them. Are they out of the fold of Islam?

3. I also read that if one prefers holi or thinks it's fun, etc., then it takes one out of the fold of Islam and their nikah will be nullified, is this true?

4. Does just merely thinking this take the person out of Islam and is their nikah nullified?

5. Does just thinking holi is fun or wanting to play it but actually don't play it as they know it is a kuffar thing, are they out of the fold of Islam and is their nikah nullified?

The person would never actually play holi as they know it is against Islam. They just want to know if they just think it's fun, etc. what affect would it have.

Q: If I say that I am a kaafir jokingly, am I out of the fold of Islam? There is no doubt about Allah and deen and is my nikaah valid or not?

Q: A man made nikaah with a lady. After a few years of marriage, the lady said to the husband that from the age of nine she believed that Allah will accept the worship of the Hindus as they claim to worship God through their idols, though she did not express her belief in words. At the time of their nikaah, she maintained this belief. A few days ago she realised that such a belief is incorrect and has since repented to Allah. What is the status of their nikaah?

Q: If a person got a doubt while in prayer about Hoors. The doubt was something like "Hoors are created from the Noor of Allah". He thought that he had read it somewhere when he actually had not. He said that he will research it after prayer. If he believes it but upon searching he found that it is not true, had he committed kufr? 

Q: Is saying wallah I worship something other than Allah shirk?

Q: Does laughing at wierd funny beard styles constitutes kufr? E.g. Beards just from the side cheeks, a straight line, etc.

Q: I am getting married and I am worried about Imaan and kufr. Since I heard that nikah will be nullified if one of the two did kufr, what precautions should one take?

Is it kufr to like kuffaar daily life ways? E.g. If someone wears kuffar clothes like pants and shirt, if we praise that person by saying that they are looking pretty in this dress, so is this kufr? There are many kuffaar thing which people have adopted nowadays and my husband to be is a duniyadar. Please guide. 

Q: Can we make takfeer of all the Shia?

Q: I downloaded a game and it asks a player to sacrifice some food as a sacrifice and to pray and to emmulate, etc as part of game. Is it ok to do so? Or should I uninstall the game?

Q: Is it permissible to use bags which have pictures of idols printed on them?