Lmfao at naruto.
Even in battle intelligence apart from planning/strategy that shikamaru beats everyone of them at naruto is second, with shino third. For insight its s tie between neji and shino.
If you mean overall intelligence, i have shika and Sakura tied.
Reason they are tied is because shika excels at planning/strategy and has most likely a higher iq than sakura. While sakura is what i call a memory tank. Most likely the most knowledgeable out of them all.
Anyway after Shika, Sakura takes it comfortable actualy.
She was said a talent for genjutsu. But is also a medic.
Yes her extreme chakra control is one of the reasons for these statements, however its also because of her intelligence.
Hyped to have very good potential in 2 fields where high intelligence is needed.
Finally
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Sasuke hadn't a clue
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Sakura's notices the reason behind the test
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Then sasuke later on
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Shino and kiba cheat using their methods
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Neji cheats
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Sasuke cheats
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Sakura actually completes the questions without cheating
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Ino acknowledging sakura's intellect cheats using her methods, then passes it on to choji and Shika. You see Shika sweating? lmfao
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Sakura has actually answered all the questions. All the others were cheating in some form, well naruto's hadn't grasped the concept of the exam but that is another matter all together lol
The obvious answer is that Sakura is at the minimum the second most intelligent member. Easy choice actually