Verbal Reasoning - Mental Ability Questions

If 8 θ 12 δ 6 = 60 and 13 θ 15 δ 11 = 74, then 18 θ 21 δ 15 = ?

If a = x, b = / and c = +, find the value of 7a5c1b6

Choose the related word/letters/number from the given alternatives.
NPR : GHI : : TVX : ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
rupees, arena, pursue, spare, separate, ?

If north-­west becomes south, north­-east becomes west and so on, then east will become which direction?

The following question consist of two words that have a certain relationship to each other, followed by four alternatives. Select the best alternative that has the same relationship as the original pair of words

Carnivore: Herbivore

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

P_P_RPQ_S_Q_ST

In each of the following questions, four words have been given out of which three are alike in some manner, while the fourth one is different. Choose the word which is different from the rest.