Verbal Reasoning - Mental Ability Questions

Find the missing number?

If BOULDER is coded as ZMSJBCP, then how will ELK be coded as?

Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.
Statements:
1. All cycles are ducks.
2. All ducks are swans.
Conclusions:
I. All swans are cycles.
II. Some swans are cycles.

Select the odd word/letters/number/number pair from the given alternatives.

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

ZA, XC, TG, NM, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

PNR, RQV, TTZ, ?, XZH

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

RQ, ST, VU, WX, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

ABC, PQR, DEF, STU, ?