Statement:

His recent investment in the shares of Company A is only a gamble.

 Assumptions

I. He may incur loss on his investment.

II. He may gain from his investment.

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4, 5, 7, (?), 19

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
 DAF, FED, HIB, ? 

Select the option that is related to the fifth alphanumeric-cluster in the same way as the second alphanumeric-cluster is related to the first alphanumeric-cluster and the fourth alphanumeric-cluster is related to the third alphanumeric-cluster.
 WXY72 : ZAB29 :: CDE12 : FGH21 :: IJK30 : ? 

Study the following information to answer the given questions:
In a certain code ‘a friend of mine’ is written as ‘4 9 1 6’  ‘mine lots of metal’ is written as ‘3 1 0 9’ and ‘a piece of metal’ is written as ‘7 1 6 3’.

What is the code for ‘piece’?

Direction: In these questions, relation between different elements is shown in the statements. The statements are followed by two conclusions. Study the conclusions based on the given statement and select the appropriate answer. 

Statement: N ≥O > P = Q; R < O < S
Conclusions:
 I. S<N
II. N> R 

Find the missing number?

In the following question, two signs and two numbers need to be interchanged to make it correct. Select the appropriate signs and number from the given alternatives.
6 × 8 + 2 = 20