Verbal Reasoning - Mental Ability Questions

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

Find the number of triangles in the figure.

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

9 , 21, 45, 93, ? , 381

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Rourkela: Bokaro: Durgapur

If a man takes 25 minutes to reach railway station and his train is scheduled at “$%”. Then at what time should he leave to reach the station 10 minutes earlier?

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

In a certain language KINDLE is coded as ELDNIK, how is IMPOSING coded in that code?

A plane flies 100 km West, then it turns South and flies 150 km, then it turns West and flies 300 km, then it turns to its right and flies 150 km. Where is it now with reference to its starting position?