Verbal Reasoning - Mental Ability Questions

Choose the missing terms out of the given alternatives DHL, PTX, BFJ, ?

1.Water boils at 100 degree C

2.Water freezes at 0 degree C

Conclusion: At low pressure ,water boils at lower temperature

The conclusion drawn is 

If the first and second letters in the word 'MISFORTUNE' were interchanged, also the third and the fourth letters, the fifth and the sixth letters and so on, which letter would then be the eighth letter counting to your left ?

Marathon is to race as Hibernation is to

Which of the following Venn diagrams correctly represents the following classes:

Karnataka, India, Asia

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family. Chitra is the sister of Rakesh. Badhri is the brother of Eniya's husband. Dilip is the father of Arun and grandfather of Rakesh. There are two fathers, three bothers and a mother in the group.

How many male members are there in the family?

How many meaningful English words can be formed with the letters LGEU using each letter only once in each word ?

17 tens in unit form?