If in a certain code, 'CAT' is coded as 'DBU', how is 'DOG' coded in that language?

A. EPH

A is the brother of B. C is the sister of A. How is C related to B?

A. SISTER

If Sarah is ranked 5th from the top and 10th from the bottom in a competition, how many competitors are there?

B. 15

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

B. H

A, B, C, D, and E are five students who scored different marks in a test. A scored more than B but less than C. D scored less than E but more than A. Who scored the least?

B. B