Verbal Reasoning - Mental Ability Questions

In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.

13 + 8 x 2 ÷ 25 - 10 = ?

In the word ACCUMUATES, if the 1st letter is interchanged with 2nd, 3rd with 4th, 5th with 6th, 7th with 8th and 9th with the 10th, then the 6th letter from the left will be

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

VTC, ZXG, DBK, HFO, ?

If the first 10 terms and the last 10 terms of the given expression are interchanged in such a way that the first term is interchanged with the last, the second with the second last, the third with the third last and soon, what will the fifth term from the right be in the new arrangement?

RB75E%M3W48Q9#B2A$MS

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

Khilji dynasty, ? , Sayyid dynasty, Lodi dynasty

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Travelling

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Superconductors

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Telepathy