Verbal Reasoning - Mental Ability Questions

In the following question, select the missing number from the given series.
3, 7, 16, 35, ?

Primary care physicians are responsible for diagnosis and treatment.

If 18 x 12 = 206 and 19 x 22 = 408, then 23 x 36 = ?

In a certain code language, "SINGING" is written as "TJOHJOH". How is "DANCING" written in that code language?

Pointing towards a boy Meera said 'He is the son of the only son of my grandfather.' How is that boy related to Meera?

From a point, Lokesh starts walking towards south and after walking 30 metres he turns to his right and walks 20 metres, then he turns right again and walks 30 metres. He finally turns to his left and walk 40 metres. In which direction is he with reference to the starting point?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?

_BC_Q_AB_P_R

A boy travels 4 km towards south and then takes a right turn travels another 3 km in that direction. How far and in which direction is he now from his original position?