Direction : Study the following information carefully and answer the questions given below:
Six persons are sitting in a row facing to the north and they have different ages but not necessarily in the same order. C sits 3rd from one of the end. The one who is 12 year old sits 2nd to the right of C.
The number of persons sit right of the one who 12 year old is same as the number of persons sit to the left of D. O sits 2nd to the right of the one who is 6 year old. Two persons sit between D and B, whose age is twice than D. N sits to the right of P. The one who 36 year old sits 3rd to the left of the one who 15 year old. The age of O is 18 year.

Who among the following sits at the extreme end of the row?

Direction. Study the following information carefully and answer the given below question:
 Alia, Babita, Chandu, Deepika, Esha, Fardeen and Geeta are seven Doctors, visiting a hospital on four days - Tuesday, Wednesday, Friday and Saturday of a week. At least one person must come on a day but not more than two. Each person has a different specialisation-
 HIV, Orthopaedics, Paediatrics, Neurology, Ophthalmology, Radiology and Oncology. Deepika comes with the Radiologist on Friday. The Paediatrician does not come on Saturday and also not with Esha or Geeta. Only the Oncologist comes on Tuesday. Babita comes on Wednesday and is not a Paediatrician. Chandu comes on Wednesday. Geeta is not a Radiologist. The Paediatrician comes with the HIV Specialist. The Neurologist comes on Friday. Alia is neither Specialization in an Orthopaedician nor a Radiologist. Nobady comes with Fardeen. 

On which day of the week does Esha visit? 

In a certain code language, ‘REQUEST’ is written as ‘22-21-7-23-19-7-20’. How will ‘SWITCH’ be written as in that language?

Which two symbols should be interchanged to make the following equation correct.
6 ÷ 5 + 12 × 4 – 7 =26

Which two signs need to be interchanged to make the given equation correct?
104 ÷ 8 + 6 - 9 x 3 = 34

In the following question, select the missing number from the given series.
2, 5, 12, 27, ?

Find the missing (?) in the series.
14, 28, 42, 56, ? , 84, 98

Direction : Study the following information and answer the given question .
* is sister of # . # is married to & . & is son of $ . * is the mother of @ . © is the father of α . © has only one son and only one daughter . α is the daughter of * . β is the son of # . 

How @ related to # ?