You're much quicker than me at seeing these. The only ones I spotted before you were 16 & 22 (and with 16 I only got it after you spotted the TEN). I'm not sure I understand why NOTEPAD can mean computer, is it just something that you can perform computations on?. I checked Chambers online and Times For the Times but they weren't any help (as an aside - a lot of grumbling in the comments of the latter about all the pop culture references!)