Verbal Reasoning - Mental Ability Questions

Which of the following interchanges in signs and numbers will make the given equation correct?
7 x 9 + 5 = 68

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

1/4, 0.65, ?, 29/20, 1.85

Choose the related word/letters/number from the given alternatives. RARE : ERAR : : ROCKET : ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. NOM, QRP, TUS, ?

If a = x, b = / and c = +, find the value of 7a5c1b6

Find the next term for the series given below: 5G, 6H, 7I, 8J , ?

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

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?