They are all the current year or very close.  They keep them for a certain amount of time, of which 3 years (I believe) is the maximum.  The answer is probably on their website.

Huh?

Go to your email settings or preferences.  Somewhere in there you should find a control to shut off or change the settings for '"overtyping" - which, I assume, you mean is some sort of auto-correct or spelling function.  Figure out what the correct term is for what you don't like, and them find the preference or setting to turn it off.

Since you didn't specify a setting, it is really bad if you fall into it.  Depending on how cold it is, hypothermia can rapidly set in and kill you quickly.  As for just consuming it, the worst that can happen is the dreaded "brain freeze...".

In my understanding, "lipids" themselves do not provide energy.  They are a broad group of fats in the blood stream that are left over from the digestion process.  Eat more fats, and the lipid level in your blood goes up. 

They do offer some energy potential, since 1 gram of fat contains 9 calories.  That is as concise an answer as can be given, since again "lipids" are a big group.  I hope that helps.

You do not scan in PDF, you save it as a PDF.  You do this by scanning what you want to scan, and then save the file.  Then open up the file and PRINT.  Once the print menu comes up, instead of hitting the "print" button, look for an option to "save to PDF."  Hit that button and a new PDF file of your scan will be created.

If you don't have the appropriate software to read and create PDF's, just go to their website and download it - its free.

It all depends on what particular phone you are talking about.  Some do, and some do not.  The question is not related to the provider (like Verizon or Sprint), but which phones are used to access that network.  Some phones use them, while others don't.  It has nothing to do with the network.

Are you talking about physical filters - like those for air or electricity, or filters that block unwanted software or other web-sourced items or code that might cause harm to that device? There are also filters that PREVENT a user or that particular machine from accessing particular connections, like parental controls that lock out of certain channels on a TV or websites on a computer.

All types are meant to prevent something unwanted or nasty for coming in contact with the device in question.