Aptitude and Reasoning Questions

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A hexagonal prism has 18 edges. How many vertices does it have?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

NO, QR, UV, ZA, ?

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Men are sinners.
(II) Saints are men.

Conclusions:
(I) Saints are sinners.
(II) Sinners are saints.

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Children play in the playground.
(II) It gives them a different approach of problem solving and decision making.

Conclusions:
(I) Playing outdoor is very necessary for overall development of child.
(II) There should be balance between playing and studying for a child.

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
642 x 6 ÷ 25 + 4 = ?

How many triangles are there in the given figure?