Yap..it's a manga by Katou Motohiro, relased on 1997. SO far it has 33 Volumes and still ongoing~
The manga is a bout ::
Touma So is an MIT-graduated-student who comes back to Japan because he wants to know how it feels to be a high school student. In the other hand, Mizuhara Kana is a strong girl who loves sports. Together, they are a partner of solving cases that happens around them.
And since September 3, 2009...
OrionWave (a scanlator group) started to working on it. So far we *cough*I'm the cleaner*cough*
already cleaning & translating for 4 chapters (Thanx to Draco1988 for the RAWs)
You can read Q.E.D here on mangafox :
or on Onemanga :
enjoy and hope you like it~
see you around <3