The world’s largest coral reef

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

2A, 3C, 5F, 7J, 11O, ?

In a certain code language, RAMESH is written as AREMHS and PRAKIL is written as 'RPKALI'. How will RISHIPAL be written in that language?

Change the question mark with the option that follows the logic applied to the first pair.

2018 : 22 :: 2022 : ??

JUG is related to LSI as per the English alphabetical order in the same way as WIN is related to YGP. Following the same pattern, APT is related to ____.

Select the pair which follows the same pattern as that followed by the two set of pairs given below. Both pairs follow the same pattern.

Change the question mark with the option that follows the applied logic in the first pair.

J : P :: M : ??

In a certain code language, 'OIL' is coded as 27 and 'CREAM' is coded as 125. How will 'POWDER' be coded in the same language?

Statements:

No toy is beautiful.

Some beautiful are actresses.

All actresses are rich.

Conclusions:

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

Select the option in which the given figure is embedded (rotation is NOT allowed).