Which letter-cluster will replace the question mark (?) to complete the given series?

RLV, PNS, NPP, ?, JTJ

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
 33 * 4 * 15 * 3 * 61 = 188

In a certain code language, 'WAVE' is coded as ‘426522’ and ‘SOUND’ is coded as ’81261323’. How will 'LIGHT' be coded in that language?

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

Millimetre, Micrometre, Nanometre, ?

After interchanging which two signs will the value of the given expression be ‘35’?

13 + 91 − 3 ÷ 529 × 23

In a certain language, if '+' means 'subtraction', '×' means 'division', '÷' means 'addition', and '–' means 'multiplication', then find the value of the following expression (BODMAS rule does not apply in that language).
 8 ÷ 16 × 4 + 2 – 3

Directions: Study the following information to answer the given questions.

12 persons are sitting in a parallel row such that six persons sit in each row. Persons in row 1 face south and persons in row 2 face north. Akshay, Viraj, Sunny, John, Sumit and Dhruv sit in row 1 while Sam, Madi, Ravi, Ankit, Bunny and Shikha in row 2. Dhruv sits third to the right of one, who sits opposite to Shikha.

One person sits between Dhruv and Akshay. Dhruv does not sit at any end. Sumit sits opposite to Bunny. Three persons sit between Bunny and Ankit. Bunny does not sit at any extreme end. Viraj sits opposite to Sam, who is not adjacent to Bunny. Sunny does not sit at extreme end or opposite to Madi.

Who sits second to the right of Sunny?

Which letter-cluster will replace the question mark (?) to complete the given series?

QRM, PWD, OBU, NGL, ?