Select the number from among the given options that can replace the question mark (?) in the following series. 

Question figure.

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
AAI, AEI, AII, AOI, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
 RTM, VZX, ZFI, DLT, ?

By interchanging the given two signs and numbers which of the following equation will be correct?
 + and ×, 1 and 2

Direction: Study the following information and answer the questions that follow.
 In an artificial language,
 “Square Love On Black” is written as “dl ap xy bc”

“Square floor On Black” is written as “dl uv bc ap”

“Love Wings Beauty Nice” is written as “sq xy om rz”

“Wings Beauty Floor Black” is written as “sq rz uv bc”

How is “love” coded in the given language?

In a certain code language, 'DANCE' is written as 'ADNEC' and ‘DISCO’ is written as ‘IDSOC’. How will 'DREAM' be written in that language?

In a certain code language, 'EAGER’ is written as 'AEHRE' and 'GIRLS' is written as 'IGSSL'. How will 'ISSUE' be written in that language?

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

TQT, ZSB, FUJ, LWR, ?