Verbal Reasoning - Mental Ability Questions

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

_r_r_t_r_r_t

Findout the odd word/letters/number/number pair from the given alternatives.

In a certain code CAMEL is written as MFNBD. How shall TIGER be written in that code?

In a certain code language, "SCENE" is written as "TBFMF". How is "TRAIN" written in that code language?

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?

56 ÷ 8 + 12 - 72 = ?

If 12 (20) 16 and 21 (35) 28, then what is value of A in 48 (80) A ?

In a certain code language "CANADA" is written as "BZMBEB". How is "SYDNEY" written in that code language?