If A=1, B=2, C=3, and so on, what is the code for the word 'CAT'?

A. 312

In a certain code, the word 'DOG' is coded as '47'. If 'D' is 4, 'O' is 15, and 'G' is 7, what is the code for 'FISH'?

A. 39

Select the number that is different from the others.

D. 20

Four friends - A, B, C, and D - have different pets: a dog, a cat, a bird, and a fish. A does not own a cat. B owns a bird. C does not own a dog. What pet does D own?

C. FISH

If the code for 'HELLO' is '8-5-12-12-15', what is the code for 'WORLD'?

A. 23-15-18-12-4