A boat can cover 187 km in downstream in 11 hours and

In a certain code language,

A @ B means 'A is the sister of B',

A  # B means 'A is the brother of B',

How many classes are there in the given picture?

Who sits at the extreme right end of the row? 

In a certain code language, 'BEST' is coded as '9715' and 'CLUB' is coded as '8762'.

What is the code for 'B' in the given code language?

If 10 A 5 B 6 C 2 = 53 and 6 A 4 B 8 C 2 = 28, then 17 A 5 B 18 C 9 =? 

In a certain code language, 'SPIT' is coded as ‘USKW’ and 'COPY' is coded as ‘ERRB’.

How will 'MOCK' be coded in that language?

In the following question, select the related word from the given alternatives.

Joule : Energy :: Newton : ?

Select the option that is related to the third letter-cluster in the same way as the second letter-

In the following question, select the wrong figure from the given series.