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

A. R

If 'HOUSE' is coded as '85191', what is the code for 'MOUSE'?

C. 15191

Assertion (A): All fruits contain seeds. Reason (R): Some fruits are seedless. What is the relationship between A and R?

C. A IS FALSE, R IS TRUE.

In a coding scheme, 'RAT' is coded as '181920'. How is 'BAT' coded?

A. 221820

Which of the following numbers is the odd one out?

D. 14