In each of the following questions, five words are given. Which of them will come in the middle if all of them are arranged alphabetically as in a dictionary?

Complete the series choosing the missing letters: 

pqrp__qq__rppp__qqr__r__qrppq__rr

Find out the set of number amongst the four sets of numbers in the alternatives which is similar to the set given in question.
Given set: (17, 13, 221)

Select the option that will fill in the blank and complete the given series.
7, 16, 40, 84______252

Study the following question and decide which of the statements is/are sufficient to answer the question.
Question:
What is the total age of Nakul and Dwij?
Statements:
1. Nakul is 12 years old today.
2. Dwij is younger to Nakul by 3 years.

In a certain language ‘PAPER’ is written as ‘UFUJW’. Then how ‘MOURN’ is coded?

If "P" denotes "multiplied by", "R" denotes "subtracted from", "S" denotes "added to" and "Q" denotes "divided by", then which of the following equation is true?

In each of the letter series, find the missing letters.

b b c – b – c a b b – a – b c a