Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
19, 29, 40, 44, ?

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

ZBJ, YCK, XDL, ?

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

ONU, NKP, MHK, LEF, ?

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

AMJ, DPM, GSP, ?, QYV

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Nightwalker

In a certain code language, '÷' represents '+', '-' represents 'x', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

14 x 10 ÷ 5 - 20 + 4 = ?

If DRIVER is coded as 5 and BELIEVED is coded as 7, then what is the code for EXAMINATION?

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

nature, ensure, tense, spent, spurn, ?