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.
Nightwalker

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

289, 256, 225, 196, ?

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?

In each of the following question, a question is followed by information given in three statements. You have to study the question along with the statements and decide the information given in which statement(s) is necessary and sufficient to answer the question.

In a family of seven members, how is P related to Q?

I. M and N are children of O, who is the wife of P.

II. A, the cousin of B, is the niece of M. III. Q is the only brother-in-law of B.

Select the related word/letters/numbers from the given alternatives: 6 : 42 :: 12 : ?

If 12x16 = 188 and 14x18 = 248, then find the value of 16x20 = ?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first numberby a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one.

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

ELABORATE