Select the related letters to replace the '?' from the given options -

HJLN : SQOM : : DFHJ : ?

In the following question, select the odd letter/letters from the given alternatives.

Select the option that is related to the third word in the same way as the second word is related to the first word.
 (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
 Library : Books :: Museum : ?

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

RMTS, WGAK, BAHC, GUOU, ?

Arrange the following words according to dictionary arrangement. 

1.LEAF 

 2.LEARNED   

3.LEAVED  

4.LEAK  

5.LEADEN

In a certain code language, 'STAR’ is coded as '92678' and 'FLAG' is coded as '20261521'. How will 'LOGO' be coded in that language?

Three of the following letter-clusters are alike in some manner and hence form a group. Which letter-cluster does not belong to that group?

Select the correct combination of mathematical signs to replace the * signs sequentially and balance the given equation.
 99 * 33 * 66 * 22 * 44 * 50