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

TQT, ZSB, FUJ, LWR, ?

Which of the following interchange of numbers and mathematical signs would make the given equation correct?
72 ÷ 8 × 9 − 36 + 20 = 80

In this question, two statements I and II have been given. These statements may be independent causes or effects of independent causes or a common cause. One of the statements may be the effect of the other statement. Read both statements and select the correct answer.
I. Country X reduced their crude oil import by 6% in the last 5 years.
II. The automobile industry in Country X has witnessed a sharp decline of 13% in its growth margin this year.

Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E. g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

(8, 12, 6)
 (9, 18, 8)

Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

Option

Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is related to the fifth number.
 30 : 48 :: 60 : ? :: 45 : 72

In a certain code language, 'INNER’ is written as 'SNNWJ' and 'GLASS' is written as 'UPAII'. How will 'MODEL' be written in that language?

A # B means ‘A is the brother of B’
A @ B means ‘A is the daughter of B’
A & B means ‘A is the husband of B’
A % B means ‘A is the wife of B’
If G % M # L @ P & C @ B, then how is L related to B?