In a class of 60 students, 40% of the students passed in Logic, 5% of the students failed in both IQ and Logic, and 20% of the students passed in both subjects. Calculate the number of students who passed only in IQ.

Among 100 people, 40 people like tea, 58 people like coffee, and 26 people like both tea and coffee. Find the number of persons who like neither tea nor coffee.

In an examination of 500 candidates comprising tests in English, Hindi, and Mathematics, the failure counts in individual and combined subjects are given as follows: - Failed in English and Hindi only = 9 - Failed in English and Mathematics only = 12 - Failed in Hindi and Mathematics only = 13 - Failed in all three subjects = 5 What is the percentage of candidates who failed in at least two subjects?