Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
A, E, I, M, ?

In a certain code language "POUCH" is written as "53461", and "PRAYERS" is written as "578902⇑". How will "CHEES" be written in that code language?

If 18α12 = 3, 2α14 = -6 and 4α4 = 0, then find the value of 2α16 = ?

In the following question, select the odd number pair from the given alternatives.

In a certain code language, “MOTOR” is written as “ORXTX”. How is “GUARD” written in that code language?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
MHZ, NIW, OKT, PNQ, ?

How many triangles are there in this geometric figure?

In a certain code language, “RAPID” is written as “GLSDU”. How is “WATER” written in that code language?