Identify the missing letter in the series: Z, X, V, T, ?

A. R

If 'MANGO' is coded as 'NBOPH', how is 'FRUIT' coded?

A. GSUJW

What comes next in the series: M, O, Q, S, ?

B. T

If '+' represents multiplication, '-' represents addition, '×' represents subtraction, and '÷' represents division, what is the result of 4 ÷ 2 + 3 × 5?

B. 20

Identify the missing letter in the series: z, x, v, t, ?

C. Q