Teacher is to School as Doctor is to ?

A. HOSPITAL

Four friends, A, B, C, and D, are sitting in a row. A is to the left of B but to the right of C. D is sitting at one of the ends. What is the correct sequence from left to right?

A. C, A, B, D

In a code language, 'HELLO' is represented as 851212. What is the code for 'OHEL'?

B. 81215

A, C, E, G, ?

A. I

Which pair of words is the odd one out?

D. FISH - SHARK