In a group of 25 people, if Tom is ranked 8th from the top and 18th from the bottom, how many people are there in total?

B. 25

In a certain code, 'CAT' is coded as '312' and 'DOG' is coded as '415'. How is 'C' coded?

A. 3

In a certain code, 'CAT' is coded as '3120'. How is 'DOG' coded in the same language?

A. 4157

What is the next letter in the series: A, C, E, G, ?

B. H

If 'APPLE' is coded as '12345', what is the code for 'LEMON'?

C. 125315