Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
1, 5, 30, 210, 1680, ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

56 ÷ 8 + 12 - 72 = ?

In the following question, select the related word pair from the given alternatives. Pascal : Pressure : : ? : ?

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

30, 62, 189, 760, ?

Rahul leaves his home and walks 5 km towards east, turns in the south-east direction and walks for 10km, then he turns north-east and moves 10 km. Again, he moves towards the north for 10km. In which direction is he now from starting point?

Select the related word/letters/number from the given alternatives.
36 : 25 : : 100 : ?

If "A" denotes "multiplied by", "C" denotes "subtracted from", "D" denotes "added to" and "B" denotes "divided by", then 76 C 54 D 210 B 3 A 15 = ?

In a certain code language, '÷' represents '+', '-' represents 'x', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

8 - 14 + 7 x 10 ÷ 9 = ?