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

B. H

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

C. 32

If 'HELLO' is coded as 'IFMMP', what would be the code for 'WORLD'?

A. XPSME

The word 'SCHOOL' is transformed into 'TIDMPM'. What is the code for 'TEACH'?

A. UFBID

What comes next in the series: A1, B2, C3, D4, ?

A. E5