Complete the following series.
AZBY, CXDW, EVFU, ?

In each of the following question , find the missing letters from the given response.
HIIJ, IJJK, JKKL,  KLLM,  LMMN, ?

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Ramanujan: Mathematician:: Sushruta:?

In the question given below , two statements are given followed by four Conclusion I, II, III and IV.You have to consider the two statements to be true even if they seem to be at variance from commonly known facts .You have to decide which of the given conclusion , if any , follow from the given statements. 

Statements
All goats are tigers.
All tigers are lions.
Conclusions :
I. All tigers are goats
II. All lions are tigers
III. No goat is a lion
IV. No lion is a goat 

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Tree : Forest : : Grass : ?

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Democracy : India : : Communism : ?

How many triangles are there in the given figure?

In each question below are given statements followed by two conclusions numbered I and II. You have taken the two given statements to be true even if they seem to be at variance with commonly known facts. Read the conclusions logically follows from the given statements disregarding commonly known facts. Give answer.  
( a ) Only I follow.
( b ) Only II follow.
( c ) If either I or II follows.  
( d ) Neither I nor II follows.  
( e ) Both I and II follow.

Statement:
All pens are roads.
All roads are houses.
Conclusion:
( I ) All house are pens.
( II ) Some houses are pens.