The beginning... i.e task 1

So my contribution towards solving task 1 was to solve the basic missions on the site hackthissite.org . Pretty easy huh... . Its easy only if you are looking in the right place else the answer may be in your face the whole time and still you will not be able to figure it out. The initial levels are just to get you warmed up. Tutorials are given on the site itself to help you out. Various hints are available on the mission page itself , the only condition being you are looking for them. 
The first mission should be a piece of cake for anyone who is a bit familiar with the field of computer science. the hint available is also available if it still does not strike you.( Common you must have at least seen the movie "source code").
Common the next mission is not even related to computer science . Read the text properly and yes .. the password is right in front of you. 

Hmmm this is where the fun starts.... Hint: Think in terms of directory structure .. :)

No to solve the next mission i.e 4 you must have the basic knowledge of how html pages work and whats the use of different tags in a page. Once you get a hold of this stuff the task is 99% solved. Get an addon to tamper the source data and bingo u are done

Now if you were able to solve the last mission you probably need no hint to solve this one. 

Congratulations you have reached level 6 now ( or you are just interested in the answers ... you wont be getting them here so better go and work :) )... just one hint is needed for this one :ASCII . Anything more than this will be similar to saying the answer.
Now get a unix book and revise your unix commands coz u r gonna need it. Find the proper command and use it to find the "list". The password is just lurking somewere ...
Now for level 8 and 9 revise your php basics. You need to be aware of the script tactics and workarounds. Just stay patient and think out of the box and youll get there...
Now comes the level 10. Now you need to be aware how cookies work . Doctors use injection to pump in medicines so do we... but we are engineers ... we use medicines for computers and what will be those....
You guessed it correct.. scripts.. use scripts to cure the disease (i.e cookies)


Okk so now i guess you should be able to solve the basic missions.. go on have a look at the advanced level missions.. so will I... . Till then adios... :)