B is twice as old as A but twice younger than F.
C is half the age of A but twice the age of D.
Which two persons from the pair of oldest and youngest ? 

B. F AND D

Prashant Arora has three children -- Sangeeta, Vimal and Ashish. Ashish married to Monika, the eldest daughter of Mr. and Mrs. Roy. The Roys married their youngest daughter to the eldest son of Mr. and Mrs. Sharma, and they had two children named Amit and Shashi. The Roys have two more children, Roshan and Vandana, both elder to Veena. Sameer and Ajay are sons of Ashish and Monika. Rashmi is the daughter of Amit. How is Mrs. Roy related to Ashish ?  

B. MOTHER-IN-LAW

(i). Jayant, Kamal, Namita, Asha and Tanmay are five members of a family.
(ii). They have their birth dates from January to May, each member in one of these months.
(iii). Each one likes one particular item for his/her birthday out of Bengali Sweets, Chocolates, Pastries, Ice Cream and Dry Fruits.
(iv). The one who likes Pastries is born in the month which is exacty middle in the mmonths given.
(v). Asha does not like Ice cream but brings Chocolates for Jayant in February.
(vi). Tanmay who is fond of Bengali sweets is born in the next month immediately after Namita.
(vii). Namita does not like Dry fruits or Ice Cream. Which combination of month and item is true for Jayant ?

E. NONE OF THESE

(i)  Kailash, Godvind and Harinder are intelligent.
(ii) Kailash, Rajesh and Jitendra are hard-working.
(iii) Rajesh,Harinder and Jitendra are honest.
(iv) Kailash, Govind and Jitendra are ambitious. Which of the followining persons is neither honest nor hard-working but is ambitious ?

B. GOVIND

A is elder to B while C and D are elder to E who lies between A and C.
If C be elder to B, Which one of the following statements is necessarily true ? 

D. E IS ELDER TO B