trick puzzles

Correct this puzzle in 5s, you are 50% better than Harvard students
The set of 3 quizzes is as easy as candy, but it turns out that more than half of the students at the world's top universities make a mistake.
It only takes 7 seconds to answer these 7 questions, your brain is very special!
There are 2 types of people in the world who always listen to the heart, and those who believe that all problems can be explained by logical thinking.