My children are grown but no, I would never teach my children to believe in a fairy tale. I would talk to them about how some people believe and I would explain why I don't believe that way. I would also teach them rational and logical thinking so that they have the tools they need to figure out for themselves what is real and provable and what isn't.
No. If I ever have children I'm going to raise them to be compassionate, decent people. If they make the conscious decision to follow one of the many religious or spiritual belief systems, so be it.
Absofreakinglutely NO! I do educate my children about religions and their beliefs but I would never fake it to fit in. That said, my 12 year old begs me sometimes not to tell new friends (I don't generally tell anyone unless they ask). There are a lot of very religious families around and it's hard for her when making new friends, the parents place so much judgement.
Nope. I would pull a page from the missionary playbook though, and teach them to go door to door spreading the word of atheism. Dress them up in nice suits and dresses, and give little pamphlets and preachings of a godless world to poor schlubs who are irritated at being woken up at 6am.
Note: I hate kids. Big reason why I don't have any. ^_^
I raised my sons to believe in themselves first, and that they could choose to follow a religion, or not. Neither of them became believers, even though their dad tried hard to cram it into their heads. I am sad that my oldest son allows his wife to take their two kids to church. However, I say nothing as their minds will work it out as they grow and change.
Never. Ever. Besides, my children are intelligent and they determined on their own that they are atheists.
Absolutely not. I am of the opinion that teaching religion is more harmful than beneficial.
Nope. Never. Mainly because I find religion to be super harmful, but also, people are going to judge literally everything you do as a parent, so, might as well do what you think is best.