Verbal Reasoning - Mental Ability Questions

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

d_ba_c_a_cb_

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

730, 1001, 1332, 1729, ?

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

23, 32, 42, 53, 65, ?

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then 180 B 36 C 5 A 8 D 32 = ?

Select the number which can be placed in the given question figure?

In the following question, select the related word from the given alternatives.
Ampere : Electric current : : Fathom : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
ZA, TG, NM, ?

Six girls are sitting in a row facing north. Garima is between Reena and Amita, Amita is on the immediate left of Pooja and Arpita is to the left of Rekha. Who is at the extreme left end?