Mystery's Riddle 2 - Advanced Alien School

[nenu]

Yea, I keep forgetting that

[Mistery]

Lol, did you make some advance meanwhile?

[nenu]

A small one.. I found the first code (in the first lesson)
and I also tried math, where I think I found the answer but it doesn't work

[Mistery]

You need to collect from all topics first

[nenu]

Ah!!!I hadn't understand that, thanks!
So can I pm you what I have, in order to see if I'm at the right path?

[Mistery]

Sure

Btw, isn't it clear enough?

[agsk]

Hi
New levels are up, let's see what we can do about it!

[Mistery]

Hi agsk, nice to see you

[agsk]

Nice to see you too "teacher"
I am just taking my first lesson of the day, let's hope not to be so difficult!

[nenu]

Hi agsk! Nice to see you

[agsk]

Hi nenu! Nice to see you too

[Mistery]

Stage 11 - Final Examination

Oh, seems that you are working hard on your final exam

Btw, I have changed the text for Stage 11 since it seemed to be not clear enough.

As clarification:
You need to visit all the subjects, and collect the answer from each of them. It is always announced what part of the solution you need for the final exam. You don't need to enter anything from the single subjects.
As soon as you have collected all the answers, put them together in order to say the final solution, and to succeed.

[agsk]

hm, my dear teacher, I am afraid I am left behind. I still struggle to identify the script on 10.a

[Mistery]

Go back to 10 and look around for a hint

[nenu]

I thought that 11-a would be easy, but I can't find even the second code