2 There is no guy who's as pretty as her/as she is pretty.

Either one as changed.

3 At the time that I wrote the message I wasn't in my normal state of mind.

4 If he gets run over while in my care, I'll get in trouble.

5 I've spent more money in on stamps than in postcards.

6 Its normal that he wants to see the product before buying it.

7 He used the word xx to mean yy,/but meant yy, which is why the sentence didn't make sense.

8 It has been brought to my attention that you are a lot like high school me used to be/like what high school me was like, which is very slutty.

??? very confusing.

9 A cheque is valid for 6 months as of/(as) from the date on it.

10 His wound is getting worse and worse by the day.

11 3 minutes till/to (the) deadline. (or until)

12 Not in one a single movie where does the hostage taker demanding demands money, does he ever get it.

 I do not know if this is wrong, but it is hard to read.