A lot of these examples CAT (I have not taken JEE), favor speed. If speed is what you lack you are out of luck. Unfortunately that wee bit of extra speed is where a lot of people lose out (I am one of them). I don't blame the exams. What else can they do? But in the real world that extra speed does not count. I have done very well in take home exams of the most horrid variety. But the same in-class exams, i would have not done as well. Still the real-world operates a lot like take-home exams. I have the time, and the eyes and candles to burn.