If MACHINE is coded as 19-7-9-14-15-20-11, how will you coded DANGER?

Question Figure

In the following problems, a square transparent sheet with a pattern is given. Figure out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

Directions: In each of the following questions, find out which of the letter series follows the given rule.
Number of letters skipped between adjacent letters in a series increases by one . 

Find the next number in the following number series?
31, 29, 24, 22, 17, ?

A square transparent sheet with a pattern is given. Figure out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

Sunder goes 4 kilometers towards the east. He then turns to the right and walks 3 kilometers. Again he turns to the right and continues walking. Which direction is he going now?

The sum of the ages of a father and his son is 56 years. After 4 years, the father's age will be 3 times his son's age. Their ages are respectively.