Select the missing number from the options given below.

The position of Manoj in any class of 64 students is 21th from the top. Tell what will be his position from the bottom? 

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:
 Some wars are battle.
 All fights are wars.
 Conclusion:
 ( I ) All fights being battle is a possibility
 ( II ) No fight is a battle

248 : 3 : : 328 : ?

Nikhilesh is taller than Arvind who is taller than Mahendra. Naresh is smaller than Suresh but taller than Nikhilesh. Who is the smallest?

A is 13th from the top, B is 18th from the bottom. When A and B change their position then A becomes 21th from top. What is the new position of B from bottom? 

Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.

Statements:
All scientists working in Japan are talented.
Some Chinese scientists are working in Japan.
Conclusions:
I. No Chinese scientist is talented.
II. Some talented Chinese scientists are working in Japan.
III. All talented scientists are Japanese.
IV. Some Chinese scientists are talented.

Twenty students are standing in a straight-line facing North. Rina is standing sixth from the left end. There are only three students between Rina and Shweta. Radha is standing exactly between Shweta and Rina. Tina is standing sixth to the right of Radha. Anita is standing fourth from the right end of the line. There are more than four students between Rina and Tina.
What is Shweta’s position with respect to Anita?