In a code language, 'CAT' is written as 'DBU'. How is 'DOG' written in that language?

A. EPH

Arrange the following words in alphabetical order: Apple, Apricot, Banana, Avocado.

A. APPLE

How many times does the letter 'E' appear in the series: A, B, C, D, E, E, F, G, E?

A. 2

If the 15th letter of the alphabet is replaced by 'X', what is the new letter at that position?

C. X

In the series 2, 4, 8, 16, what is the next number?

C. 32