निर्देश :

What should come in place of the question mark (?) to complete the following letter-cluster series?

BDC, EGF, HJI, ? 

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

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

Select the option that is related to the third word in the same way as the second word is related to the first word.

Detective: Clues :: Scientist:? 

H, V, G, T, F, R, E, P,?, ?

In a certain code language. 'I missed breakfast' is written as 'nl zn kq' and 'train is missed' is written as 'zm kg nl'.

In a certain code language

A + B means ‘A is the brother of B’

A – B means ‘A is the father of B’

What will come in place of ‘?’ in the following equation, if ‘+’ and ‘–‘ are interchanged and ‘×’ and ‘÷’ are interchanged?

If the two signs, '× and ÷' are interchanged, which of the following equations will be correct?