Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

[EX Q]: The US emergency telephone number 911 seems to be almost always pronounced as nine one one whereas the Porsche model is typically pronounced as nine eleven One reason I can think of for preferring 'nine one one' for the phone number is that there is no 'eleven' key on a phone. On the other hand, '0800' is often pronounced 'o eight hundred'. Is there a logical or historical reason for the different pronunciations?.
[EX A]: How a car manufacturer names its models is more of a marketing preference than anything, but in general you'll find that the Porche model is the norm. Ask any schoolchild to read aloud the number '911' and you'll get 'nine hundred and eleven', not 'nine one one'. The telephone number 9-1-1 was, as you speculated, spelled out specifically to prevent people - particularly children - from getting confused looking for the 'eleven' key on the telephone. I have heard this anecdotally countless times, but I'm having a hard time finding an authoritative source. Closest I can come are various 'history of 911' websites like this one: Dr. Phil Shaenman, head of the U.S. Fire Administration's research department, authored a paper explaining that children should be taught to dial 'nine-one-one,' and not 'nine-eleven.' He pointed out that a child's conceptual abilities prevent them from recognizing the difference between '11' and '1-1.'

[EX Q]: Let's imagine a hypothetical business: Mistake Corp. Mistake Corp makes a lot of mistakes, and as it turns out, the reason they make these mistakes is typically the same. 90% of the time Mistake Corp makes a mistake, it's because of misinformation. I suppose misinformation is the opposite of a linchpin for Mistake Corp. I'd like to be able to use the word like so: 'Misinformation is the [anti-linchpin] of Mistake Corp' What non-ambiguous word, other than 'anti-linchpin', can I use to describe something that is a frequent cause for mistakes to those who aren't as English-savvy?.
[EX A]: I'd say that misinformation is the pitfall for Mistake Corp. A hidden or unsuspected danger or difficulty: 'There are obvious pitfalls of such behavior, if it ever developed into a habit.' They indeed seem to fall in time and again; check the box for unsuspected...

[EX Q]: Possible Duplicate: 'Nikki's and Alice's X' vs. 'Nikki and Alice's X' Consider describing the wedding of X and Y. If I want to avoid the overly-formal and poor-flowing 'wedding of', it is more correct to say 'X and Y's wedding' or 'X's and Y's wedding'? I acknowledge a very similar question has already been asked: What possessive forms are used for mutual 1st person ownership? But unfortunately the example given is able to be easily phrased a different way and so respondents have been able to get away with avoiding the direct question. Let's face it, we come across the need to get across the concept of mutual possession all the time and we don't always want to have to resort to the more tortured 'Z of X and Y' as with the French language. NB: In some cases, people get around this problem by dropping the apostrophes altogether and 'adjectivising' the owners, especially if the owners are actually plural entities themselves. Eg. The 'Mazda and Mitsubishi combined outputs' instead of the 'Mazda's and Mitsubishi's combined outputs'. Let's not let this muddy the waters though.
[EX A]:
This site states it very well: A less-often faced decision involves the use of apostrophes where multiple owners are named. Where two or more people own one item together, place an apostrophe before an 's' only after the second-named person. For example: Incorrect: Bill's and Mary's car was a lemon, leading them to seek rescission of their contract under the state's lemon law. Correct: Bill and Mary's car was a lemon, leading them to seek rescission of their contract under the state's lemon law. However, when two or more people own two or more items separately, each individual's name should take the possessive form. For example: Incorrect: Joanne and Todd's cars were bought from the same dealer; both proved useless, even though Joanne's car was an import and Todd's was a domestic model. Correct: Joanne's and Todd's cars were bought from the same dealer; both proved useless, even though Joanne's car was an import and Todd's was a domestic model. ('The Legal Writing Teaching Assistant: The Law Student's Guide to Good Writing', by Marc A. Grinker) So, saying 'X's and Y's weddings' (note that it's weddings not wedding) has a different meaning from 'X and Y's wedding'. The first one is denoting two separate weddings, and the two subjects named are not getting married to one another, but the second one is the one you are probably trying to say.