- 2 coding problems were all basic data structure and algorithm, I believe anyone with basic knowledge about coding can complete both of this. - the question about IQ was interesting, I never heard about it before but it's kinda popular on the internet already. if you are lucky enough (see that problem before), you might complete it fast. - and the searching question was just about searching for information about a topic which you had never heard before, for me it was about automatically self-driven car.