Verbal Reasoning - Mental Ability Questions

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

A, C, E, G, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
PON, LKJ, GFE, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
I, V, ? , L

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?

Introducing a woman, a boy says, "She is the wife of my grandfather's son". How is the woman related to the boy?

Raj is facing north. He cycles for 8 km, then turns towards the south-east direction to move 10 km and from there, he moves 6 km towards the west. In which direction/place is he from his original position?

Arrange the given words in the sequence in which they occur in the dictionary.
1. Cadartrally
2. Caddisflies
3. Caducities
4. Caddisworms
5. Cadetships

Select the related word/letters/number from the given alternatives.
30 : 16 :: 24 : ?