Verbal Reasoning - Mental Ability Questions

What will be the next set of alphabets in the series? AZ, BY, CX, ___

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.
 
15 x 4 ÷ 35 - 70 + 16 = ?

Rajaram's son's sister's mother is Ramani. How is Ramani related to Rajaram?

In a certain code language, "SIGHT" is written as "@?*^!" and "ANT" is written as "#&!". How is "NIGHT" written in that code language?

If, 4x3=14; 5x4=18; 6x5=22; Then find the value of 7x6=?

Five girls are sitting facing towards the north. Rekha is between Shalini and Neetu. Pooja is to the immediate right of Neetu and Shalini is to the immediate right of Neha. Who is sitting in the middle?

If 9x3=3; 15x3=5; 60x5=12; then what is the value of 27x3 = ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

50 + 5 - 700 x 28 = ?