Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:
ECCENTRICITY

Two navy ships start from the same port. Ship A travels 23 km West, then turns to its left and travels 19 km. Ship B travels 19 km West, then turns North and travels 5 km, then turns to its left and travels 4 km. Where is ship A with respect to ship B?

Usha, Tulsi, Divya, Pooja, Rohit, Aakash and Aditi are facing north. Rohit is at the immediate left of Aakash, while Divya is the neighbour of Tulsi and Pooja. The one who is third to the left of Pooja is on one of the ends. Aditi is fourth to the left ofRohit. Who are the neighbours of Tulsi?

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

BC, JK, RS, ?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?

A_BC_BBC_BB_

In the following question, select the missing number from the given options?

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?

Nikhil is 8 yr younger than his brother Rohan . How old will Rohan be when he is twice as old as Nikhil ?