Hi Degga D, welcome to the forum! I managed to find this game, but it will cost you money, I'm sure theres a free one out there somewhere~ I'll let you know if I find one, for other games you can check out the download section they got all sorts of goodies~
MR. GENIUS: BRAIN TEST VOL.1 - Windows Mobile Games, Pocket PC Games, WM2005 Games from clickgamer.com