What is the 20th letter of the English alphabet?

A. T

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

B. H

If 'CAT' is coded as '3120', what is the code for 'DOG'?

A. 4157

What is the code for 'HELLO' if 'H' is coded as '8', 'E' as '5', 'L' as '12', and 'O' as '15'?

A. 851215

If 'APPLE' is coded as 'BQQMF', what is the code for 'GRAPE'?

A. HSBQF