Verbal Reasoning - Mental Ability Questions

Select the related word from the given alternatives.
River : Stream :: Ocean : ?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

X_ZX_YY_ZX_Z

Which of the following cube in the answer figure cannot be made based on the unfolded cube in the question figure?

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

50 + 5 - 700 x 28 = ?

Aman is 4 years older to Bimal. Bimal is 2 years younger to Chaman. Chaman is 6 years older to Dhruv. Dhruv is 9 years younger to Esha. Who is the second eldest?

Select the related word/letters/number from the given alternatives.
25: 260 : : 30 : ?

Kamal starts walking from his home facing west direction. After walking 10 km he takes a right turn and walks another 10 km. He takes another right turn and walks 10 km to reach his school. How far (in km) and in which direction is he from his home?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
rupees, arena, pursue, spare, separate, ?