Mind numbingly stupid eBay questions...

Now I'm new to selling stuff on eBay so this may well happen all the time but I ask you to first look at my eBay auction here.  Now read the following questions I was asked:

Q: Hi there Can I ask: 1) Is the phone fully working? 2) Does it run a Symbian menu system? 3) What is the reason for sale? 4) Does it come with a memory card? 5) Would you accept £45.00 for the 7600 on a buy it now? 6) Will you ship recorded 1st class for security? Thanks

Answers to every one of these questions is in the item description itself!  All apart from question 5 where I'm not selling a 7600 and I certainly wouldnt want to sell it outside of eBay for £45!  I mean, I'm just dumbfounded but the stupidity of this guy... he's obviously not read a word of the item description.

Is it worth responding to this or should I not bother?