When is Statistics Day celebrated in

Statements: All shoes are leather. Some leather are belts. Some belts are gold.

Conclusion I: Some shoes are belts.

Conclusion II: All belts are gold.

Select the option is related to figure D in the same way as figure A is related to figure B.

What should come in place of ? in the given series? 

26  37  59  92  136  ?

Select the option that can replace the question mark (?) in the following series.

VO39, TM35, RK31, PI27, ?

Read the following statement and answer the following question.

A @ B means AB is the mother of

A # B, which means AB is father.