Question figure

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4, 5, 7, (?), 19

Find the number of triangles in the given figure

Which of the option figures is the exact mirror image of the given problem figure when the mirror is held to the right side of the problem figure?

Five people, P, Q, R, S, and T, are sitting in a straight row, facing north. Q sits to the immediate left of S. Only three people sit between R and T. P sits to the immediate left of T. Who sits in the middle 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. 

What is Deepika's Specialisation? 

Select the option that is related to the fourth term in the same way as the first term is related to the second term and the fifth term is related to the sixth term.
 729 : 90 :: ? : 56 :: 512 : 72

Statement:

The organization should promote employees on the basis of merit alone and not on the basis of length of services or seniority.

Assumptions

I. Length of service or seniority does not alone reflect merit of an employee.

II. It is possible to determine and measure merit of an employee.