(Private Giveaway) The hardest puzzle ever

Hints you say? Sounds fun.

If you're stuck on the first question, don't panic. Consulting a bag of random letters might help.

Another hint for Question 3 or better said my own hint rewritten.

The Answer all of you think of which is the sentence Joshua says is correct you just need to put it into other words ;)

What is 6*9 if not 54?

Hmm... question 2 hint:

Bill Haley might accidentally give you the answer while making his exit.

Right. I got the correct answers. What a pain.

What's that, a whole bin of paste in room G88zQc0E?

Careful: That contains all the answers. If you want to solve the puzzle yourself, you should probably stay away.

so theres no giveaway?

Solved 1, 3 and 4, got 5 thanks to solutions but I have no idea where 2 comes from :/
And now I'm stumped with the result, I don't have any idea how to start working on it after Google was very unhelpful.

What do i do when i solve it? :3

Can you drop a hint how to get the code for the URL OGrady? The Solution i thought was working wasnt correct :/

Someone said it's for the Binding of Isaac soundtrack, which is the one soundtrack I really want. But this puzzle seems overall impossible. So, thanks for the giveaway and a chance to win!

I managed to get all but Q2....might try bruteforcing it tomorrow at work =D

For the Q3, it's a chess party ?

So the giveaway is over. It was a joy to behold, if you ask me.

So, you guys already have the answers, but not everyone has entered the giveaway. What was that crap? Why no link?
Suffice to say that a lot of people actually found the link, so stop your whining :D As a special prize, Lunk, the first (and only) person to solve all questions without help, has received Legend of Grimrock. Congratulations! The winner of the giveaway has already received his gift, too.

I hate it when "puzzle"s rely on google search.