In a coding system, 'FISH' is coded as 23, 18, 21, 25. If 'BIRD' is coded as 20, 15, 18, 22, what is the code for 'WIND'?

A. 25, 18, 14, 24

If the pattern is A, C, E, G, what is the next letter in the sequence?

B. H

A class consists of four students: John, Lisa, Mark, and Nina. The following conditions are given: 1) John is older than Lisa but younger than Mark. 2) Nina is the youngest. 3) Lisa is not the oldest. Who is the oldest student in the class?

C. MARK

A group of animals consists of a lion, a tiger, a bear, and a wolf. The following conditions are given: The lion is heavier than the tiger but lighter than the bear. The wolf is lighter than the tiger. Which animal is the heaviest?

C. BEAR

In the series A, B, C, D, E, F, G, H, I, J, how many times does the letter 'E' occur?

A. 1