In a certain language, 'CAT' is coded as 'DBU'. What is the code for 'DOG'?

A. EPH

If the letter 'X' is the 24th letter, what is the letter that comes 5 positions before it?

A. S

In the alphabet series, which letter is the 15th letter?

A. O

Arrange the following words in alphabetical order: Zebra, Antelope, Lion, Giraffe.

B. ANTELOPE

Which word is last in alphabetical order: Kite, Kangaroo, Koala, Lion?

D. LION