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

512, 256, 128, ?, 32, 16, 8

Arrange the given words in the sequence in which they occur in the dictionary.
i. Rainbow
ii. Rancour
iii. Rattle
iv. Rainy

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
RIN, TFR, VCV, ?, ZWD 

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
o p _ o s _ t _ o _ p o _ i t e _ p p o _ i _ e 

Direction: Answer the questions given below referring to the following arrangement.
2 L P 3 R * J @ C O 7 N I # 4 Q A B 6 $ M = D 5 K

What will come in the place of the question marks (?) in the following series based on the above arrangement?
P3R, @CO, I#4, B6$, ?

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

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

Directions: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.

l–n–mll-m–n–l