Verbal Reasoning - Mental Ability Questions

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

50 + 3 ÷ 125 x 5 - 25 = ?

If mathematical operators '-' and '/' are interchanged, then the value of 15 x 4 ÷ 15 - 11 x 33 ÷ 98 is

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. AB, GH, MN, ST, ?

In a certain code language, “LINKS” is written as “93210” and “CROMA” is written as “84576”. How is “ROCKS” written in that code language?

In a certain code, 134 is AGE and 92706 is INERT. What is 016923?

How many such numbers are present in the below arrangement which are immediately preceded by a consonant and immediately followed by a letter?

Q@A3RI4*6T4W4O2^E$6S

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?

If 'x' means 'addition', '­' means 'division', '/' means 'subtraction' and '+' means 'multiplication', then which of the equation is correct