Verbal Reasoning - Mental Ability Questions

In the following question, select the missing number from the given series.
5, 13, 40, 104, ?

Which of the following diagrams correctly represents elephants, wolves, animals?

If RATION is written as OXQFLK then LUMBER may be written as _____ .

Introducing a girl, a boy says, "She is the daughter of my father's only brother­in­law". How is the girl related to the boy?

In the following question, select the missing number from the given series.
9, 18, 72, 576, ?

If DECEMBER is coded as EDECBMRE then FEBRUARY will be coded as

BACTERIA : ILLNESS :: ____ : ____

If L denotes 'x', M denotes '÷' , P denotes '+' and Q denotes '-'  then 16P24M8Q6M2L3