There are dozens of different intelligence tests, including many items, such as common sense, understanding, arithmetic, similarity, memory, words, images, building blocks, arrangement, puzzles, symbols and so on.
Human's understanding of the brain has just begun. Of course, IQ theory is unscientific and cannot be used as a decisive factor for success.
So we can't jump to conclusions. Qian Zhongshu, a famous scholar and writer (1910-1998, from Wuxi, Jiangsu). Graduated from Wuxi Fu Jen Middle School with the first place in 1929, and then applied for Tsinghua University. He did well in Chinese and English exams. It is said that English is perfect and Chinese is close to perfection, but math is only 15. Supposedly, this kind of situation can't be admitted, but the examiner reported to Luo Jialun, then the president of Tsinghua, and President Luo made an exception and admitted him out of love for talents (plus his own similar experience).