Verbal Reasoning - Mental Ability Questions

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121

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?

Error : Blunder :: ___ : Excellent

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

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

Pranab Mukherjee, Pratibha Patil, APJ Abdul Kalam,?

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

RST, XYZ, DEF, ?

An office worker walks 4 km East from his home to reach a taxi-stand. He catches a taxi from there which goes 10 km South, then the taxi turns right and goes a further 15 km. Here he gets down and takes a bus. This bus travels 2 km North, then travels 3 km West then it turns to its right and travels 8 km to reach the man's office. Where is this man's office with respect to his home?

Ramesh is richer than Satish but Jaya is less rich than Ramesh. Ram is less rich than Jaya but richer than Satish, but is not as rich as Ramesh. Ramesh is less rich than Navin. The richest amongst them is?