Find the next number in the following number series?
7, 10, 8, 11, 9, 12, ?

Direction: In the following question, select the related letters from the given alternatives.
Book : Pages : : Ladder : ?

24, 60, 120, 210, ?

Directions : Study the following information and answer the questions given :
Seven people - A, B , C , D , E , F and G are sitting in a circle . Five of them are facing the centre while two of them are facing opposite to the centre. C sits third to the left of D and both are facing the centre. E is neither an immediate neighbour of D nor of C. The one sitting exactly between D and F is facing opposite to the centre. G sits third to the right of A and G is facing the centre. One of B ' s neighbour is facing opposite to the centre.

Which of the following pairs rep resents persons, facing opposite to the centre? 

Rahul's mother is the only daughter of Monika's father. How is Monika's husband related to Rahul ?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
gh_i_hi_ig_ii_ _

Arrange the following words in logical order -

1. Embryo 2. Child 3. Child 4. Adult 5. Youth

From the given alternative words, select the one which can be formed by using the letters of the given word.
MOBILIZATION