Exams are a multi-day process, and you will have to answer a couple of questions each day. You will also have no free time. Just test, sleep, test, sleep. So without further ado …
The answer to the first question with the lines is to say that they are "optical illusions." When the next question asks about "seeing things," you should respond with "visual information," followed by "brain processes it," and then "different cognition." Wipe the sweat off your brow and go home.
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