[boothby]

Got it in one "guess." Apparently どうぞ means "here you are." Makes me think the brick was deliberately left in the door for folks who look for such things.

[koolba]

My first guess was "friend", a la the Doors of Durin.

http://tolkiengateway.net/wiki/Doors_of_Durin

[yreg]

It should be mellon.

[Bad_CRC]

“The Four Most-Used Passwords Are Love, Sex, Secret, and God”

[coreyp_1]

You hacker... https://www.youtube.com/watch?v=0Jx8Eay5fWQ

[Auracle]

I tried hunter2

[rolandog]

I copy/pasted ****; no luck.